HWTest [bvt-tast-cq] TestFailure

https://luci-logdog.appspot.com/v/?s=chromeos/bb/chromeos/edgar-paladin/4007/+/recipes/steps/HWTest__bvt-tast-cq_/0/stdout

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tast.meta.RunTests                 [ PASSED ]
tast.power.Reboot                  [ PASSED ]
tast.mustpass-android_SERVER_JOB   [ FAILED ]
tast.mustpass-android_SERVER_JOB     FAIL: 
tast.mustpass-chrome_SERVER_JOB    [ FAILED ]
tast.mustpass-chrome_SERVER_JOB      FAIL: 
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The log for tast.mustpass-android_SERVER_JOB:
https://pantheon.corp.google.com/storage/browser/chromeos-autotest-results/245424313-chromeos-test/chromeos2-row5-rack2-host9/ssp_logs/debug/?pli=1


10/04 20:29:06.080 ERROR|             utils:2769| Timed out waiting for unnamed condition
10/04 20:29:39.372 ERROR|         container:0180| Error loading ID for container test_175596360_1518226584_217017:
Traceback (most recent call last):
  File "/usr/local/autotest/site_utils/lxc/container.py", line 168, in __init__
    os.path.join(self.container_path, self.name))
  File "/usr/local/autotest/site_utils/lxc/container.py", line 76, in load
    job_id, ctime, pid = json.load(f)
  File "/usr/lib/python2.7/json/__init__.py", line 290, in load
    **kw)
  File "/usr/lib/python2.7/json/__init__.py", line 338, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.7/json/decoder.py", line 366, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python2.7/json/decoder.py", line 384, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

Same error for 2 other container ids.