When we try to run cros buildresult from our role account, we get the following error:

$ cros buildresult --report json --buildbucket-id 8924369327032897568 --debug
15:01:23: DEBUG: Cache dir lookup.
15:01:23: DEBUG: Configured cache_dir to '/usr/local/google/crostc/chromeos/.cache'
15:01:23: INFO: RunCommand: /usr/local/google/crostc/chromeos/chromite/bin/cros_sdk --log-level debug -- /mnt/host/source/chromite/bin/cros buildresult --report json --buildbucket-id 8924369327032897568 --debug in /usr/local/google/crostc/chromeos
15:01:23: DEBUG: Configured cache_dir to '/usr/local/google/crostc/chromeos/.cache'
15:01:24: DEBUG: Configured cache_dir to '/usr/local/google/crostc/chromeos/.cache'
15:01:25: DEBUG: Cache dir lookup.
15:01:25: DEBUG: Configured cache_dir to '/mnt/host/source/.cache'
15:01:25: DEBUG: Using cached credentials /mnt/host/source/.cache/cidb_creds
15:01:25: INFO: Running cidb query on pid 8, repr(query) starts with 'SHOW DATABASES'
15:01:25: WARNING: /mnt/host/source/chromite/lib/cidb.py:237: Warning: 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
  cur.execute("SET SESSION sql_mode='STRICT_ALL_TABLES'")

15:01:25: WARNING: /mnt/host/source/chromite/lib/cidb.py:237: Warning: Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
  cur.execute("SET SESSION sql_mode='STRICT_ALL_TABLES'")

15:01:25: INFO: Created cidb engine readonly@104.197.188.23 for pid 8
15:01:25: INFO: Running cidb query on pid 8, repr(query) starts with 'SHOW TABLES'
15:01:26: INFO: Running cidb query on pid 8, repr(query) starts with 'SELECT MAX(schemaVersion) from schemaVersionTable'
15:01:26: INFO: Created a SchemaVersionedMySQLConnection, sqlalchemy version 0.9.2
15:01:27: INFO: Running cidb query on pid 8, repr(query) starts with <sqlalchemy.sql.selectable.Select at 0x7f7443bc0fd0; Select object>
15:01:30: ERROR: cros buildresult failed before completing.
cros: Unhandled exception:
Traceback (most recent call last):
  File "/mnt/host/source/chromite/bin/cros", line 170, in <module>
    DoMain()
  File "/mnt/host/source/chromite/bin/cros", line 166, in DoMain
    commandline.ScriptWrapperMain(FindTarget)
  File "/mnt/host/source/chromite/lib/commandline.py", line 912, in ScriptWrapperMain
    ret = target(argv[1:])
  File "/mnt/host/source/chromite/scripts/cros.py", line 66, in main
    code = _RunSubCommand(subcommand)
  File "/mnt/host/source/chromite/scripts/cros.py", line 51, in _RunSubCommand
    return subcommand.Run()
  File "/mnt/host/source/chromite/cli/cros/cros_buildresult.py", line 243, in Run
    build_statuses = [b for b in build_statuses if IsBuildStatusFinished(b)]
  File "/mnt/host/source/chromite/cli/cros/cros_buildresult.py", line 66, in IsBuildStatusFinished
    return build_status['status'] in _FINISHED_STATUSES
TypeError: list indices must be integers, not str

This was working up through Sunday...