https://luci-milo.appspot.com/buildbot/chromeos/veyron_speedy-paladin/5242

05/11 11:41:20.778 WARNI|              test:0615| The test failed with the following exception
Traceback (most recent call last):
  File "/usr/local/autotest/common_lib/test.py", line 576, in _exec
    _cherry_pick_call(self.initialize, *args, **dargs)
  File "/usr/local/autotest/common_lib/test.py", line 732, in _cherry_pick_call
    return func(*p_args, **p_dargs)
  File "/usr/local/autotest/common_lib/cros/arc.py", line 456, in initialize
    raise error.TestFail(err)
TestFail: adb is not ready in 60 seconds.