eve-paladin failed HWTest in both bvt-cq and bvt-tast-cq.

Logs from bvt-cq:
chromeos-golo-server5-232: 4199f90c8f5a4310 3
  Autotest instance created: cautotest-prod
  TestLabException: Not enough DUTs for requirements: ('board:eve', 'pool:cq'); required: 4, found: 3
  Traceback (most recent call last):
    File "/usr/local/autotest/site_utils/run_suite.py", line 2000, in _run_task
      return _run_suite(options)
    File "/usr/local/autotest/site_utils/run_suite.py", line 1738, in _run_suite
      options.skip_duts_check)
    File "/usr/local/autotest/site_utils/diagnosis_utils.py", line 320, in check_dut_availability
      hosts=hosts)
  NotEnoughDutsError: Not enough DUTs for requirements: ('board:eve', 'pool:cq'); required: 4, found: 3
  Will return from run_suite with status: INFRA_FAILURE


Logs from bvt-tast-cq:
17:49:53: INFO: No json dump found, no HWTest results to report
17:49:54: ERROR: <class 'chromite.lib.failures_lib.TestLabFailure'>: ** HWTest did not complete due to infrastructure issues (code 3) **
Traceback (most recent call last):
  File "/b/swarming/w/ir/cache/cbuild/repository/chromite/lib/parallel.py", line 441, in _Run
    self._task(*self._task_args, **self._task_kwargs)
  File "/b/swarming/w/ir/cache/cbuild/repository/chromite/cbuildbot/stages/generic_stages.py", line 704, in Run
    self.PerformStage()
  File "/b/swarming/w/ir/cache/cbuild/repository/chromite/cbuildbot/stages/test_stages.py", line 281, in PerformStage
    raise cmd_result.to_raise
TestLabFailure: ** HWTest did not complete due to infrastructure issues (code 3) **


Build info:
https://ci.chromium.org/p/chromeos/builders/luci.chromeos.general/CQ/b8927938960027655264