betty-pre-cq VMTest is flaky, sheriffs@, can you please take a look> 

https://luci-milo.appspot.com/buildbot/chromiumos.tryserver/pre_cq/48956

https://luci-milo.appspot.com/buildbot/chromiumos.tryserver/pre_cq/49074

20:38:09 INFO | autoserv| AUTOTEST_STATUS::		ERROR	cheets_KeyboardTest	cheets_KeyboardTest	timestamp=1502329089	localtime=Aug 09 20:38:09	Timed out waiting for condition: Expected text entered




08/10 14:34:37.398 ERROR|             utils:2737| Timed out waiting for condition: Expected text entered
08/10 14:34:37.405 DEBUG|              test:0389| Test failed due to Timed out waiting for condition: Expected text entered. Exception log follows the after_iteration_hooks.
08/10 14:34:37.405 DEBUG|              test:0392| starting after_iteration_hooks
08/10 14:34:37.408 DEBUG|             utils:0212| Running 'logger "autotest finished iteration /usr/local/autotest/results/default/cheets_KeyboardTest/sysinfo/iteration.1"'
08/10 14:34:37.414 WARNI|               arc:0402| Iteration 1 failed, taking a screenshot.
08/10 14:34:37.474 WARNI|               arc:0410| Unable to capture screenshot. NULL pointer access
08/10 14:34:37.480 DEBUG|              test:0395| after_iteration_hooks completed
08/10 14:34:37.481 WARNI|              test:0612| The test failed with the following exception
Traceback (most recent call last):
  File "/usr/local/autotest/common_lib/test.py", line 606, in _exec
    _call_test_function(self.execute, *p_args, **p_dargs)
  File "/usr/local/autotest/common_lib/test.py", line 806, in _call_test_function
    return func(*args, **dargs)
  File "/usr/local/autotest/common_lib/test.py", line 470, in execute
    dargs)
  File "/usr/local/autotest/common_lib/test.py", line 347, in _call_run_once_with_retry
    postprocess_profiled_run, args, dargs)
  File "/usr/local/autotest/common_lib/test.py", line 380, in _call_run_once
    self.run_once(*args, **dargs)
  File "/usr/local/autotest/tests/cheets_KeyboardTest/cheets_KeyboardTest.py", line 49, in run_once
    sleep_interval=1)  # second
  File "/usr/local/autotest/common_lib/utils.py", line 2738, in poll_for_condition
    raise TimeoutError(desc)
TimeoutError: Timed out waiting for condition: Expected text entered