Synthesis failed for nodejs-asset

Hello! Autosynth couldn't regenerate nodejs-asset. :broken_heart:
Here's the output from running synth.py:
env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-01-29 03:17:10,775 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-86
nothing to commit, working tree clean
2021-01-29 03:17:10,927 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-01-29 03:17:10,938 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-01-29 03:17:10,939 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-01-29 03:17:10,944 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-29 03:17:10,948 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-01-29 03:20:33,150 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp1ahysdgi.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp1ahysdgi.
2021-01-29 03:20:33,161 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-29 03:20:33,165 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-01-29 03:20:40,445 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpqssdhi8i.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpqssdhi8i.
2021-01-29 03:20:40,463 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-29 03:20:40,468 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-01-29 03:20:47,434 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpa7j084nq.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpa7j084nq.
2021-01-29 03:20:47,446 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-29 03:20:47,452 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-01-29 03:20:52,929 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpcrzqvqoz.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpcrzqvqoz.
2021-01-29 03:20:52,942 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-29 03:20:52,946 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-01-29 03:20:59,572 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpwg3j8mwe.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpwg3j8mwe.
2021-01-29 03:20:59,589 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-01-29 03:20:59,648 autosynth [ERROR] > Synthesis failed
2021-01-29 03:20:59,648 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-01-29 03:20:59,660 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-01-29 03:20:59,669 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-01-30 03:16:58,087 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-89
nothing to commit, working tree clean
2021-01-30 03:16:58,237 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-01-30 03:16:58,247 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-01-30 03:16:58,248 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-01-30 03:16:58,253 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:16:58,257 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-01-30 03:20:22,650 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpds9tp1qn.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpds9tp1qn.
2021-01-30 03:20:22,667 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:20:22,671 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-01-30 03:20:29,829 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpv2wvng4o.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpv2wvng4o.
2021-01-30 03:20:29,841 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:20:29,845 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-01-30 03:20:36,869 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp9qxqq6cw.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp9qxqq6cw.
2021-01-30 03:20:36,881 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:20:36,885 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-01-30 03:20:42,298 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpdp8piues.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpdp8piues.
2021-01-30 03:20:42,311 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:20:42,315 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-01-30 03:20:49,046 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmppf_s8oey.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmppf_s8oey.
2021-01-30 03:20:49,063 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-01-30 03:20:49,125 autosynth [ERROR] > Synthesis failed
2021-01-30 03:20:49,126 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-01-30 03:20:49,137 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-01-30 03:20:49,146 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-01-30 03:16:58,087 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-89
nothing to commit, working tree clean
2021-01-30 03:16:58,237 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-01-30 03:16:58,247 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-01-30 03:16:58,248 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-01-30 03:16:58,253 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:16:58,257 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-01-30 03:20:22,650 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpds9tp1qn.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpds9tp1qn.
2021-01-30 03:20:22,667 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:20:22,671 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-01-30 03:20:29,829 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpv2wvng4o.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpv2wvng4o.
2021-01-30 03:20:29,841 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:20:29,845 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-01-30 03:20:36,869 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp9qxqq6cw.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp9qxqq6cw.
2021-01-30 03:20:36,881 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:20:36,885 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-01-30 03:20:42,298 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpdp8piues.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpdp8piues.
2021-01-30 03:20:42,311 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-30 03:20:42,315 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-01-30 03:20:49,046 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmppf_s8oey.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmppf_s8oey.
2021-01-30 03:20:49,063 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-01-30 03:20:49,125 autosynth [ERROR] > Synthesis failed
2021-01-30 03:20:49,126 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-01-30 03:20:49,137 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-01-30 03:20:49,146 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-01-31 03:16:49,436 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-89
nothing to commit, working tree clean
2021-01-31 03:16:49,578 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-01-31 03:16:49,587 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-01-31 03:16:49,588 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-01-31 03:16:49,593 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:16:49,596 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-01-31 03:20:13,686 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp28kkunwl.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp28kkunwl.
2021-01-31 03:20:13,701 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:20:13,706 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-01-31 03:20:20,703 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpj64hko28.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpj64hko28.
2021-01-31 03:20:20,715 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:20:20,719 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-01-31 03:20:27,293 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpglgzvnqp.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpglgzvnqp.
2021-01-31 03:20:27,306 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:20:27,310 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-01-31 03:20:32,744 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp6w4oc51w.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp6w4oc51w.
2021-01-31 03:20:32,758 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:20:32,762 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-01-31 03:20:39,208 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpgw2vekvd.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpgw2vekvd.
2021-01-31 03:20:39,224 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-01-31 03:20:39,279 autosynth [ERROR] > Synthesis failed
2021-01-31 03:20:39,279 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-01-31 03:20:39,291 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-01-31 03:20:39,300 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-01-31 03:16:49,436 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-89
nothing to commit, working tree clean
2021-01-31 03:16:49,578 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-01-31 03:16:49,587 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-01-31 03:16:49,588 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-01-31 03:16:49,593 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:16:49,596 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-01-31 03:20:13,686 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp28kkunwl.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp28kkunwl.
2021-01-31 03:20:13,701 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:20:13,706 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-01-31 03:20:20,703 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpj64hko28.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpj64hko28.
2021-01-31 03:20:20,715 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:20:20,719 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-01-31 03:20:27,293 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpglgzvnqp.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpglgzvnqp.
2021-01-31 03:20:27,306 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:20:27,310 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-01-31 03:20:32,744 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp6w4oc51w.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp6w4oc51w.
2021-01-31 03:20:32,758 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-01-31 03:20:32,762 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-01-31 03:20:39,208 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpgw2vekvd.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpgw2vekvd.
2021-01-31 03:20:39,224 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-01-31 03:20:39,279 autosynth [ERROR] > Synthesis failed
2021-01-31 03:20:39,279 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-01-31 03:20:39,291 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-01-31 03:20:39,300 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-02-01 03:17:03,079 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-90
nothing to commit, working tree clean
2021-02-01 03:17:03,210 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-02-01 03:17:03,220 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-02-01 03:17:03,220 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-02-01 03:17:03,224 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-01 03:17:03,228 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-02-01 03:19:45,480 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpgckya08e.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpgckya08e.
2021-02-01 03:19:45,496 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-01 03:19:45,500 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-02-01 03:19:51,931 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpwhv1xuw9.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpwhv1xuw9.
2021-02-01 03:19:51,941 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-01 03:19:51,945 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-02-01 03:19:58,458 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmprh8ms0xd.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmprh8ms0xd.
2021-02-01 03:19:58,476 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-01 03:19:58,481 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-02-01 03:20:03,613 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpk57sar1d.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpk57sar1d.
2021-02-01 03:20:03,631 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-01 03:20:03,634 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-02-01 03:20:09,362 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpyxin_myt.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpyxin_myt.
2021-02-01 03:20:09,378 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-02-01 03:20:09,426 autosynth [ERROR] > Synthesis failed
2021-02-01 03:20:09,426 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-02-01 03:20:09,436 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-02-01 03:20:09,444 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-02-02 03:16:58,352 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-96
nothing to commit, working tree clean
2021-02-02 03:16:58,495 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-02-02 03:16:58,505 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-02-02 03:16:58,505 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-02-02 03:16:58,510 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-02 03:16:58,513 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-02-02 03:19:47,403 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp_l4wzykr.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp_l4wzykr.
2021-02-02 03:19:47,413 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-02 03:19:47,417 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-02-02 03:19:54,057 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpkhim8hc6.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpkhim8hc6.
2021-02-02 03:19:54,068 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-02 03:19:54,072 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-02-02 03:20:00,457 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpmmka6ivc.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpmmka6ivc.
2021-02-02 03:20:00,475 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-02 03:20:00,481 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-02-02 03:20:05,897 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp9v_k5e1y.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp9v_k5e1y.
2021-02-02 03:20:05,910 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-02 03:20:05,913 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-02-02 03:20:12,203 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp5pcktxnl.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp5pcktxnl.
2021-02-02 03:20:12,218 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-02-02 03:20:12,270 autosynth [ERROR] > Synthesis failed
2021-02-02 03:20:12,270 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-02-02 03:20:12,281 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-02-02 03:20:12,289 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
nv/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-02-03 03:16:51,206 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-100
nothing to commit, working tree clean
2021-02-03 03:16:51,344 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-02-03 03:16:51,353 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-02-03 03:16:51,354 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-02-03 03:16:51,358 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-03 03:16:51,361 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-02-03 03:20:07,108 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp7y8dokou.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp7y8dokou.
2021-02-03 03:20:07,118 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-03 03:20:07,121 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-02-03 03:20:13,608 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp7i1utlsr.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp7i1utlsr.
2021-02-03 03:20:13,626 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-03 03:20:13,630 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-02-03 03:20:20,196 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmplo1sdqnw.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmplo1sdqnw.
2021-02-03 03:20:20,208 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-03 03:20:20,212 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-02-03 03:20:25,636 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpy3_xti5_.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpy3_xti5_.
2021-02-03 03:20:25,647 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-03 03:20:25,651 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-02-03 03:20:31,710 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpas1bfgrd.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpas1bfgrd.
2021-02-03 03:20:31,735 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-02-03 03:20:31,797 autosynth [ERROR] > Synthesis failed
2021-02-03 03:20:31,798 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-02-03 03:20:31,808 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-02-03 03:20:31,817 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
nv/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-02-04 03:18:01,219 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-110
nothing to commit, working tree clean
2021-02-04 03:18:01,356 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-02-04 03:18:01,367 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-02-04 03:18:01,369 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-02-04 03:18:01,374 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-04 03:18:01,378 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-02-04 03:20:13,726 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmppdc98gjc.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmppdc98gjc.
2021-02-04 03:20:13,738 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-04 03:20:13,743 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-02-04 03:20:19,352 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpyq7nl_nl.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpyq7nl_nl.
2021-02-04 03:20:19,370 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-04 03:20:19,376 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-02-04 03:20:25,122 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpeqmz45gi.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpeqmz45gi.
2021-02-04 03:20:25,134 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-04 03:20:25,140 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-02-04 03:20:30,176 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpwu7bv4jh.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpwu7bv4jh.
2021-02-04 03:20:30,189 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-04 03:20:30,193 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-02-04 03:20:35,357 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp_dux4sb8.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp_dux4sb8.
2021-02-04 03:20:35,376 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-02-04 03:20:35,435 autosynth [ERROR] > Synthesis failed
2021-02-04 03:20:35,435 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-02-04 03:20:35,447 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-02-04 03:20:35,457 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
nv/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-02-05 02:18:35,447 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-123
nothing to commit, working tree clean
2021-02-05 02:18:35,580 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-02-05 02:18:35,591 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-02-05 02:18:35,592 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-02-05 02:18:35,597 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-05 02:18:35,600 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-02-05 02:18:40,914 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpu9yq4_wk.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpu9yq4_wk.
2021-02-05 02:18:40,924 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-05 02:18:40,928 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-02-05 02:18:45,092 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpev70gn03.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpev70gn03.
2021-02-05 02:18:45,103 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-05 02:18:45,108 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-02-05 02:18:50,625 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpypya4zsl.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpypya4zsl.
2021-02-05 02:18:50,645 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-05 02:18:50,650 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-02-05 02:18:54,684 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpye8ewpg7.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpye8ewpg7.
2021-02-05 02:18:54,698 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-05 02:18:54,703 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-02-05 02:18:59,936 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpl8n0uhmz.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpl8n0uhmz.
2021-02-05 02:18:59,952 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-02-05 02:19:00,007 autosynth [ERROR] > Synthesis failed
2021-02-05 02:19:00,007 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-02-05 02:19:00,018 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-02-05 02:19:00,027 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
nv/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-02-06 02:30:01,552 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-131
nothing to commit, working tree clean
2021-02-06 02:30:01,690 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-02-06 02:30:01,702 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-02-06 02:30:01,703 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-02-06 02:30:01,709 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-06 02:30:01,713 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-02-06 02:30:06,815 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpl_gp_t1w.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpl_gp_t1w.
2021-02-06 02:30:06,830 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-06 02:30:06,837 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-02-06 02:30:11,719 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpp17n1h95.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpp17n1h95.
2021-02-06 02:30:11,731 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-06 02:30:11,736 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-02-06 02:30:17,040 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp2zoyduow.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp2zoyduow.
2021-02-06 02:30:17,052 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-06 02:30:17,056 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-02-06 02:30:22,047 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp06sg5iiv.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp06sg5iiv.
2021-02-06 02:30:22,060 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-06 02:30:22,065 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-02-06 02:30:27,213 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpfj32re5_.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpfj32re5_.
2021-02-06 02:30:27,229 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-02-06 02:30:27,289 autosynth [ERROR] > Synthesis failed
2021-02-06 02:30:27,289 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-02-06 02:30:27,300 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-02-06 02:30:27,310 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
nv/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-02-07 02:07:42,706 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-131
nothing to commit, working tree clean
2021-02-07 02:07:42,841 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-02-07 02:07:42,852 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-02-07 02:07:42,853 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-02-07 02:07:42,858 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-07 02:07:42,862 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-02-07 02:07:48,865 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpzyp3pwld.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpzyp3pwld.
2021-02-07 02:07:48,876 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-07 02:07:48,881 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-02-07 02:07:54,209 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpdu_u1138.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpdu_u1138.
2021-02-07 02:07:54,223 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-07 02:07:54,229 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-02-07 02:08:00,903 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpi9ilgj_z.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpi9ilgj_z.
2021-02-07 02:08:00,915 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-07 02:08:00,921 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-02-07 02:08:06,093 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp09pvu1hm.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp09pvu1hm.
2021-02-07 02:08:06,107 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-07 02:08:06,112 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-02-07 02:08:11,909 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp7p7mybrl.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp7p7mybrl.
2021-02-07 02:08:11,926 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 173, in fetch_more_tokens
    return self.fetch_stream_end()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 377, in fetch_stream_end
    self.remove_possible_simple_key()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/scanner.py", line 319, in remove_possible_simple_key
    "could not find expected ':'", self.get_mark())
yaml.scanner.ScannerError: while scanning a simple key
  in "<unicode string>", line 5, column 3:
      <gs:my-bucket/my-analysis.json>
      ^
could not find expected ':'
  in "<unicode string>", line 5, column 34:
      <gs:my-bucket/my-analysis.json>
                                     ^
2021-02-07 02:08:11,990 autosynth [ERROR] > Synthesis failed
2021-02-07 02:08:11,990 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at dfbd75c feat(samples): add samples for analyzeIamPolicy and analyzeIamPolicyLongrunning (#433)
2021-02-07 02:08:12,001 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2021-02-07 02:08:12,011 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating nodejs-asset. :sob:
Here's the output from running synth.py:
nv/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2021-02-08 02:07:17,352 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/nodejs-asset/synth.py.
On branch autosynth-131
nothing to commit, working tree clean
2021-02-08 02:07:17,477 synthtool [DEBUG] > Ensuring dependencies.
DEBUG:synthtool:Ensuring dependencies.
2021-02-08 02:07:17,487 synthtool [DEBUG] > Cloning googleapis.
DEBUG:synthtool:Cloning googleapis.
2021-02-08 02:07:17,488 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/googleapis
2021-02-08 02:07:17,492 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-08 02:07:17,496 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p1beta1:asset-v1p1beta1-nodejs.
2021-02-08 02:07:22,959 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpyv5bvwep.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpyv5bvwep.
2021-02-08 02:07:22,969 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-08 02:07:22,973 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p2beta1:asset-v1p2beta1-nodejs.
2021-02-08 02:07:27,851 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp2q7kra3f.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp2q7kra3f.
2021-02-08 02:07:27,862 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-08 02:07:27,866 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p4beta1:asset-v1p4beta1-nodejs.
2021-02-08 02:07:33,438 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp8gheudph.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp8gheudph.
2021-02-08 02:07:33,450 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-08 02:07:33,453 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1p5beta1:asset-v1p5beta1-nodejs.
2021-02-08 02:07:38,340 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmp2wmo5dyd.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmp2wmo5dyd.
2021-02-08 02:07:38,351 synthtool [DEBUG] > Which version of bazel will I run?
DEBUG:synthtool:Which version of bazel will I run?
bazel 3.0.0
2021-02-08 02:07:38,355 synthtool [DEBUG] > Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
DEBUG:synthtool:Generating code for: //google/cloud/asset/v1:asset-v1-nodejs.
2021-02-08 02:07:43,859 synthtool [SUCCESS] > Generated code into /tmpfs/tmp/tmpew45303j.
SUCCESS:synthtool:Generated code into /tmpfs/tmp/tmpew45303j.
2021-02-08 02:07:43,874 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
DEBUG:synthtool:Using precloned repo /home/kbuilder/.cache/synthtool/synthtool
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/nodejs-asset/synth.py", line 41, in <module>
    source_location='build/src', versions=versions, default_version='v1')
  File "/tmpfs/src/github/synthtool/synthtool/gcp/common.py", line 278, in node_library
    kwargs["metadata"] = node.template_metadata()
  File "/tmpfs/src/github/synthtool/synthtool/languages/node.py", line 67, in template_metadata
    all_samples = samples.all_samples(["samples/*.js"])
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in all_samples
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 72, in <listcomp>
    return [_sample_metadata(file) for file in sorted(files)]
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 51, in _sample_metadata
    return {**metadata, **_read_sample_metadata_comment(file)}
  File "/tmpfs/src/github/synthtool/synthtool/gcp/samples.py", line 40, in _read_sample_metadata_comment
    sample_metadata = yaml.load(sample_metadata_string, Loader=yaml.SafeLoader)[
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/yaml/__init__.py", line 114, in load
    return loader.get_single_data()