The pre-cq-launcher builder failed at PreCQLauncher stage where it tried to query chromium-review.googlesource.com but got error code 500 as return. See https://chromegw.corp.google.com/i/chromeos/builders/pre-cq-launcher/builds/8180.

13:52:03: INFO: Attempting to create transaction for achuith:414436:e1735211
13:52:04: INFO: Attempting to create transaction for zhihongyu:*302578:*9b04081d
13:52:04: INFO: Attempting to create transaction for groeck:415219:75766831
13:52:24: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:52:45: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:53:06: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:53:27: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:53:49: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:54:12: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:54:35: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:54:59: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:55:23: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:55:47: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:56:12: WARNING: A transient error occured while querying chromium-review.googlesource.com:
GET /a/changes/413805/detail?o=CURRENT_REVISION&o=CURRENT_COMMIT HTTP/1.1
HTTP/1.1 500 Internal Server Error
Response body: 'Internal server error\n'
13:56:12: ERROR: <class 'chromite.lib.gob_util.InternalGOBError'>: Internal Server Error
Traceback (most recent call last):
  File "/b/cbuild/internal_master/chromite/lib/parallel.py", line 602, in TaskRunner
    task(*x, **task_kwargs)
  File "/b/cbuild/internal_master/chromite/lib/parallel.py", line 800, in <lambda>
    fn = lambda idx, task_args: out_queue.put((idx, task(*task_args)))
  File "/b/cbuild/internal_master/chromite/lib/gerrit.py", line 109, in GetChangeDetail
    self.host, change_num, o_params=('CURRENT_REVISION', 'CURRENT_COMMIT'))
  File "/b/cbuild/internal_master/chromite/lib/gob_util.py", line 347, in GetChangeDetail
    return FetchUrlJson(host, path)
  File "/b/cbuild/internal_master/chromite/lib/gob_util.py", line 232, in FetchUrlJson
    fh = FetchUrl(*args, **kwargs)
  File "/b/cbuild/internal_master/chromite/lib/gob_util.py", line 224, in FetchUrl
    _FetchUrlHelper, sleep=SLEEP)
  File "/b/cbuild/internal_master/chromite/lib/retry_util.py", line 172, in RetryException
    return GenericRetry(exc_retry, max_retry, functor, *args, **kwargs)
  File "/b/cbuild/internal_master/chromite/lib/retry_util.py", line 122, in GenericRetry
    ret = functor(*args, **kwargs)
  File "/b/cbuild/internal_master/chromite/lib/gob_util.py", line 194, in _FetchUrlHelper
    raise InternalGOBError(response.status, response.reason)
InternalGOBError: Internal Server Error