https://luci-milo.appspot.com/buildbot/chromeos/guado_moblab-paladin/5870
https://pantheon.corp.google.com/storage/browser/chromeos-autotest-results/116711389-chromeos-test/chromeos2-row1-rack8-host1/debug/

05/10 08:58:55.982 DEBUG|        retry_util:0136| <class 'urllib2.URLError'>(<urlopen error [Errno 111] Connection refused>)
05/10 08:59:06.032 DEBUG|        retry_util:0136| <class 'urllib2.URLError'>(<urlopen error [Errno 111] Connection refused>)
05/10 08:59:26.131 DEBUG|        retry_util:0136| <class 'urllib2.URLError'>(<urlopen error [Errno 111] Connection refused>)
05/10 09:00:06.134 DEBUG|        retry_util:0136| <class 'urllib2.URLError'>(<urlopen error [Errno 111] Connection refused>)
05/10 09:01:26.236 DEBUG|        retry_util:0136| <class 'urllib2.URLError'>(<urlopen error [Errno 111] Connection refused>)
05/10 09:03:55.980 ERROR|          autoserv:0769| Timeout occurred- waited 300.0 seconds.
Traceback (most recent call last):
  File "/usr/local/autotest/server/autoserv", line 761, in main
    use_ssp)
  File "/usr/local/autotest/server/autoserv", line 494, in run_autoserv
    test_retry, **kwargs)
  File "/usr/local/autotest/server/site_server_job.py", line 48, in __init__
    super(site_server_job, self).__init__(*args, **dargs)
  File "/usr/local/autotest/server/server_job.py", line 331, in __init__
    self.machines, self.in_lab, host_attributes)
  File "/usr/local/autotest/server/server_job.py", line 102, in get_machine_dicts
    afe_host = _create_afe_host(machine, in_lab)
  File "/usr/local/autotest/server/server_job.py", line 1440, in _create_afe_host
    hosts = afe.get_hosts(hostname=hostname)
  File "/usr/local/autotest/server/frontend.py", line 538, in get_hosts
    hosts = self.run('get_hosts', **query_args)
  File "/usr/local/autotest/server/cros/dynamic_suite/frontend_wrappers.py", line 127, in run
    self, call, **dargs)
  File "/usr/local/autotest/site-packages/chromite/lib/retry_util.py", line 114, in GenericRetry
    time.sleep(sleep_time)
  File "/usr/local/autotest/site-packages/chromite/lib/timeout_util.py", line 87, in kill_us
    raise TimeoutError(error_message % {'time': max_run_time})
TimeoutError: Timeout occurred- waited 300.0 seconds.