Log:
https://chromium-swarm.appspot.com/task?id=3969f6e4190d5310&refresh=10&show_raw=1

  Traceback (most recent call last):
    RunBenchmark at e:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\story_runner.py:334
      max_num_values=benchmark.MAX_NUM_VALUES)
    Run at e:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\story_runner.py:202
      _RunStoryAndProcessErrorIfNeeded(story, results, state, test)
    _RunStoryAndProcessErrorIfNeeded at e:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\story_runner.py:106
      test.Measure(state.platform, results)
    Measure at e:\b\s\w\ir\third_party\catapult\telemetry\telemetry\web_perf\timeline_based_measurement.py:290
      self._ComputeTimelineBasedMetrics(results, trace_value)
    _ComputeTimelineBasedMetrics at e:\b\s\w\ir\third_party\catapult\telemetry\telemetry\web_perf\timeline_based_measurement.py:335
      results.histograms.ImportDicts(mre_result.pairs.get('histograms', []))
    ImportDicts at e:\b\s\w\ir\third_party\catapult\tracing\tracing\value\histogram_set.py:82
      self.AddHistogram(histogram_module.Histogram.FromDict(d))
    FromDict at e:\b\s\w\ir\third_party\catapult\tracing\tracing\value\histogram.py:1024
      hist._bins[int(i)].FromDict(bin_dct)
    FromDict at e:\b\s\w\ir\third_party\catapult\tracing\tracing\value\histogram.py:855
      diagnostic_map_dict))
    FromDict at e:\b\s\w\ir\third_party\catapult\tracing\tracing\value\histogram.py:770
      dm.AddDicts(dct)
    AddDicts at e:\b\s\w\ir\third_party\catapult\tracing\tracing\value\histogram.py:778
      self[name] = diagnostic.Diagnostic.FromDict(diagnostic_dict)
    FromDict at e:\b\s\w\ir\third_party\catapult\tracing\tracing\value\diagnostics\diagnostic.py:49
      diagnostic = cls.FromDict(dct)
    FromDict at e:\b\s\w\ir\third_party\catapult\tracing\tracing\value\histogram.py:352
      result.Set(name, value)
    Set at e:\b\s\w\ir\third_party\catapult\tracing\tracing\value\histogram.py:375
      assert isinstance(value, (int, float))
  AssertionError
  
  Locals:
    name  : u'system_memory'
    value : 2562735712L
  
  Traceback (most recent call last):
    File "e:\b\s\w\ir\tools\perf\benchmarks\system_health_smoke_test.py", line 118, in RunTest
      msg='Failed: %s' % benchmark_class)
  AssertionError: Failed: <class 'benchmarks.system_health.DesktopMemorySystemHealth'>

Retrying failed tests (attempt #1 of 3)...