auth.cloud-client.snippets_test: test_implicit failed

[flaky-bot]

This test failed!

To configure my behavior, see the Flaky Bot documentation.

If I'm commenting on this issue too often, add the flakybot: quiet label and
I will stop commenting.

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commit: b99df8d
buildURL: Build Status, Sponge
status: failed

Test output

Traceback (most recent call last):
  File "/workspace/auth/cloud-client/snippets_test.py", line 24, in test_implicit
    snippets.implicit()
  File "/workspace/auth/cloud-client/snippets.py", line 30, in implicit
    buckets = list(storage_client.list_buckets())
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/api_core/page_iterator.py", line 214, in _items_iter
    for page in self._page_iter(increment=False):
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/api_core/page_iterator.py", line 253, in _page_iter
    page = self._next_page()
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/api_core/page_iterator.py", line 382, in _next_page
    response = self._get_next_page_response()
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/api_core/page_iterator.py", line 442, in _get_next_page_response
    method=self._HTTP_METHOD, path=self.path, query_params=params
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/cloud/storage/_http.py", line 78, in api_request
    return call()
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/api_core/retry.py", line 290, in retry_wrapped_func
    on_error=on_error,
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/api_core/retry.py", line 188, in retry_target
    return target()
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/cloud/_http.py", line 480, in api_request
    timeout=timeout,
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/cloud/_http.py", line 338, in _make_request
    method, url, headers, data, target_object, timeout=timeout
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/cloud/_http.py", line 376, in _do_request
    url=url, method=method, headers=headers, data=data, timeout=timeout
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/auth/transport/requests.py", line 476, in request
    self.credentials.before_request(auth_request, method, url, request_headers)
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/auth/credentials.py", line 133, in before_request
    self.refresh(request)
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/oauth2/service_account.py", line 408, in refresh
    request, self._token_uri, assertion
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/oauth2/_client.py", line 193, in jwt_grant
    response_data = _token_endpoint_request(request, token_uri, body)
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/oauth2/_client.py", line 165, in _token_endpoint_request
    _handle_error_response(response_data)
  File "/workspace/auth/cloud-client/.nox/py-3-7/lib/python3.7/site-packages/google/oauth2/_client.py", line 60, in _handle_error_response
    raise exceptions.RefreshError(error_details, response_data)
google.auth.exceptions.RefreshError: ('invalid_grant: Invalid JWT Signature.', {'error': 'invalid_grant', 'error_description': 'Invalid JWT Signature.'})

[flaky-bot]

Looks like this issue is flaky. 😟

I'm going to leave this open and stop commenting.

A human should fix and close this.

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When run at the same commit (b99df8d), this test passed in one build (Build Status, Sponge) and failed in another build (Build Status, Sponge).