Builbot status page: https://uberchromegw.corp.google.com/i/chromium.perf.fyi/builders/Mac%20Power%20Low-End%20Perf

Traceback:
Traceback (most recent call last):
  File "/b/c/b/Mac_Power_Low_End_Perf/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py", line 78, in _RunStoryAndProcessErrorIfNeeded
    test.WillRunStory(state.platform)
  File "/b/c/b/Mac_Power_Low_End_Perf/src/third_party/catapult/telemetry/telemetry/web_perf/timeline_based_measurement.py", line 274, in WillRunStory
    platform.tracing_controller.StartTracing(self._tbm_options.config)
  File "/b/c/b/Mac_Power_Low_End_Perf/src/third_party/catapult/telemetry/telemetry/core/tracing_controller.py", line 43, in StartTracing
    self._tracing_controller_backend.StartTracing(tracing_config, timeout)
  File "/b/c/b/Mac_Power_Low_End_Perf/src/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py", line 91, in StartTracing
    if agent.StartAgentTracing(config, timeout):
  File "/b/c/b/Mac_Power_Low_End_Perf/src/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/battor_tracing_agent.py", line 73, in StartAgentTracing
    self._battor.StartTracing()
  File "/b/c/b/Mac_Power_Low_End_Perf/src/third_party/catapult/common/battor/battor/battor_wrapper.py", line 143, in StartTracing
    self._SendBattorCommand(self._START_TRACING_CMD)
  File "/b/c/b/Mac_Power_Low_End_Perf/src/third_party/catapult/common/battor/battor/battor_wrapper.py", line 257, in _SendBattorCommand
    'Outputted: %s' % (cmd, status))
BattorError: BattOr did not complete command 'StartTracing' correctly.
Outputted: [0906/075841:FATAL:battor_agent_bin.cc(88)] Fatal error when communicating with the BattOr: TOO MANY INIT RETRIES