Link to build or pfq page.
https://uberchromegw.corp.google.com/i/chromeos/builders/peach_pit-chrome-pfq/builds/3593

build # for that buildbot.
3593

Snippet of log that contains the failure.
21:18:41: INFO: Translating result <class 'chromite.cbuildbot.manifest_version.GenerateBuildSpecException'>: return code: 1; command: /b/cbuild/.cache/common/gsutil_4.19.tar.gz/gsutil/gsutil -o 'Boto:num_retries=10' stat -- gs://chromeos-manifest-versions/builder-status/9625.0.0-rc1/peach_pit-chrome-pfq
Your "Oauth 2.0 User Account" credentials are invalid. For more help, see "gsutil help creds", or re-run the gsutil config command (see "gsutil help config").
Failure: Unable to find the server at accounts.google.com.

cmd=['/b/cbuild/.cache/common/gsutil_4.19.tar.gz/gsutil/gsutil', '-o', 'Boto:num_retries=10', 'stat', '--', u'gs://chromeos-manifest-versions/builder-status/9625.0.0-rc1/peach_pit-chrome-pfq'], extra env={'BOTO_CONFIG': '/b/build/site_config/.boto'}
Traceback (most recent call last):
  File "/b/cbuild/chromite/lib/failures_lib.py", line 190, in wrapped_functor
    return functor(*args, **kwargs)
  File "/b/cbuild/chromite/cbuildbot/stages/sync_stages.py", line 799, in PerformStage
    fail_if_exists=fail_if_exists)
  File "/b/cbuild/chromite/cbuildbot/manifest_version.py", line 822, in SetInFlight
    raise GenerateBuildSpecException(e)
GenerateBuildSpecException: return code: 1; command: /b/cbuild/.cache/common/gsutil_4.19.tar.gz/gsutil/gsutil -o 'Boto:num_retries=10' stat -- gs://chromeos-manifest-versions/builder-status/9625.0.0-rc1/peach_pit-chrome-pfq
Your "Oauth 2.0 User Account" credentials are invalid. For more help, see "gsutil help creds", or re-run the gsutil config command (see "gsutil help config").
Failure: Unable to find the server at accounts.google.com.

cmd=['/b/cbuild/.cache/common/gsutil_4.19.tar.gz/gsutil/gsutil', '-o', 'Boto:num_retries=10', 'stat', '--', u'gs://chromeos-manifest-versions/builder-status/9625.0.0-rc1/peach_pit-chrome-pfq'], extra env={'BOTO_CONFIG': '/b/build/site_config/.boto'}
 to fail.