b'2020-05-27 09:47:58,720 autosynth [INFO] > logs will be written to: /tmpfs/src/github/synthtool/logs/googleapis/python-api-core\n2020-05-27 09:47:59,238 autosynth [DEBUG] > Running: git config --global core.excludesfile /home/kbuilder/.autosynth-gitignore\n2020-05-27 09:47:59,242 autosynth [DEBUG] > Running: git config user.name yoshi-automation\n2020-05-27 09:47:59,245 autosynth [DEBUG] > Running: git config user.email yoshi-automation@google.com\n2020-05-27 09:47:59,248 autosynth [DEBUG] > Running: git config push.default simple\n2020-05-27 09:47:59,251 autosynth [DEBUG] > Running: git branch -f autosynth\n2020-05-27 09:47:59,254 autosynth [DEBUG] > Running: git checkout autosynth\nSwitched to branch \'autosynth\'\n2020-05-27 09:47:59,262 autosynth [DEBUG] > Running: git rev-parse --show-toplevel\n2020-05-27 09:47:59,265 autosynth [DEBUG] > Running: git log -1 --pretty=%H\n2020-05-27 09:47:59,269 autosynth [DEBUG] > Running: git remote get-url origin\n2020-05-27 09:47:59,278 synthtool [ERROR] > Failed executing git clone --single-branch rpc://devrel/cloud/libraries/tools/autosynth /home/kbuilder/.cache/synthtool/autosynth:\n\nCloning into \'/home/kbuilder/.cache/synthtool/autosynth\'...\nfatal: unable to find remote helper for \'rpc\'\n\n2020-05-27 09:47:59,278 autosynth [DEBUG] > Running: git clean -fdx\nTraceback (most recent call last):\n  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main\n    "__main__", mod_spec)\n  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code\n    exec(code, run_globals)\n  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 615, in <module>\n    main()\n  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 476, in main\n    return _inner_main(temp_dir)\n  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 576, in _inner_main\n    git_source.enumerate_versions(sources, pathlib.Path(temp_dir))\n  File "/tmpfs/src/github/synthtool/autosynth/git_source.py", line 166, in enumerate_versions\n    source_versions = enumerate_versions_for_source(git_source, temp_dir)\n  File "/tmpfs/src/github/synthtool/autosynth/git_source.py", line 131, in enumerate_versions_for_source\n    local_repo_dir = str(synthtool_git.clone(remote))\n  File "/tmpfs/src/github/synthtool/synthtool/sources/git.py", line 83, in clone\n    shell.run(cmd, check=True)\n  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run\n    raise exc\n  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run\n    encoding="utf-8",\n  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run\n    output=stdout, stderr=stderr)\nsubprocess.CalledProcessError: Command \'[\'git\', \'clone\', \'--single-branch\', \'rpc://devrel/cloud/libraries/tools/autosynth\', PosixPath(\'/home/kbuilder/.cache/synthtool/autosynth\')]\' returned non-zero exit status 128.\n'