I've hit this flake a few times today. P1 b/c it has wasted a bit of time trying to get things through CQ.

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ERROR: handlers.crash.test.fracas_dashboard_test.FracasDashBoardTest.testFilterWithSuspectsUntriaged (/b/rr/tmpuTfHfJ/w/infra/appengine/findit/handlers/crash/test/fracas_dashboard_test.expected/FracasDashBoardTest.testFilterWithSuspectsUntriaged.json)
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Traceback (most recent call last):
  File "/b/rr/tmpuTfHfJ/w/infra/ENV/local/lib/python2.7/site-packages/expect_tests/pipeline.py", line 397, in process_test
    subresult = subtest.run()
  File "/b/rr/tmpuTfHfJ/w/infra/ENV/local/lib/python2.7/site-packages/expect_tests/type_definitions.py", line 240, in run
    return self.func_call(context=context)
  File "/b/rr/tmpuTfHfJ/w/infra/ENV/local/lib/python2.7/site-packages/expect_tests/type_definitions.py", line 155, in __call__
    return f.func(*f.args, **f.kwargs)
  File "/b/rr/tmpuTfHfJ/w/infra/ENV/local/lib/python2.7/site-packages/expect_tests/unittest_helper.py", line 31, in _RunTestCaseSingle
    return Result(getattr(test_instance, test_name)())
  File "/b/rr/tmpuTfHfJ/w/infra/appengine/findit/handlers/crash/test/fracas_dashboard_test.py", line 228, in testFilterWithSuspectsUntriaged
    self.assertEqual(expected_result, response_json.json_body)
  File "/usr/lib/python2.7/unittest/case.py", line 515, in assertEqual
    assertion_func(first, second, msg=msg)
  File "/usr/lib/python2.7/unittest/case.py", line 837, in assertDictEqual
    self.fail(self._formatMessage(msg, standardMsg))
  File "/usr/lib/python2.7/unittest/case.py", line 412, in fail
    raise self.failureException(msg)
AssertionError: {'fracas_crashes': [{'stack_trace': u'dummy\nframe1\nframe2', 'regression_range' [truncated]... != {u'fracas_crashes': [], u'end_date': u'2016-07-08 00:00:00 UTC', u'regression_ra [truncated]...
Diff is 1373 characters long. Set self.maxDiff to None to see it.
==== captured logging output ====


Example build: https://build.chromium.org/p/tryserver.infra/builders/Infra%20Linux%20Trusty%2064%20Tester/builds/2985
https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Ftryserver.infra%2FInfra_Linux_Trusty_64_Tester%2F2985%2F%2B%2Frecipes%2Fsteps%2Fpython_tests%2F0%2Fstdout