veyron_minnie-paladin:3752 failed

Builders failed on: 
- veyron_minnie-paladin: 
  https://luci-milo.appspot.com/buildbot/chromeos/veyron_minnie-paladin/3752

 HWTest looks the cause of the CQ failure.

log https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_minnie-paladin/builds/3752/steps/HWTest%20%5Bbvt-arc%5D/logs/stdio

======
cheets_StartAndroid.stress                           [ FAILED ]
cheets_StartAndroid.stress                             FAIL: Unhandled LoginException: Timed out going through login screen. Cryptohome not mounted. OOBE not dismissed.
======

Builder: veyron_minnie-paladin  
https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_minnie-paladin?numbuilds=200

It looks sometimes failing. Here are last 5 failures:

#3738
TestLabException: Chromium OS Test Lab is closed: Lab is down ( crbug.com/761578 ).
#3737
_ShutDownException: (15, 'Received signal 15; shutting down')
#3734, #3733
cheets_StartAndroid.stress                             FAIL: Unhandled LoginException: Timed out going through login screen. Cryptohome not mounted. OOBE not dismissed.
<<same error as this one>>
#3728
Suite job                                            [ FAILED ]
Suite job                                              ABORT: