Another example on quawks-paladin

https://luci-milo.appspot.com/buildbot/chromeos/quawks-paladin/418


08/12 22:18:32.161 DEBUG|             utils:0212| Running 'ssh 100.115.245.200 'curl "http://100.115.245.200:8082/kill_au_proc?pid=13798&host_name=100.115.230.64"''
08/12 22:18:33.345 DEBUG|        dev_server:2153| Exception raised on auto_update attempt #2:
 Traceback (most recent call last):
  File "/home/chromeos-test/chromiumos/src/platform/dev/cros_update.py", line 216, in TriggerAU
    clobber_stateful=self.clobber_stateful)
  File "/home/chromeos-test/chromiumos/chromite/lib/auto_updater.py", line 979, in __init__
    payload_filename=payload_filename)
  File "/home/chromeos-test/chromiumos/chromite/lib/auto_updater.py", line 236, in __init__
    self.device_dev_dir = os.path.join(self.device.work_dir, 'src')
  File "/home/chromeos-test/chromiumos/chromite/lib/remote_access.py", line 657, in work_dir
    capture_output=True).output.strip()
  File "/home/chromeos-test/chromiumos/chromite/lib/remote_access.py", line 889, in BaseRunCommand
    return self.GetAgent().RemoteSh(cmd, **kwargs)
  File "/home/chromeos-test/chromiumos/chromite/lib/remote_access.py", line 344, in RemoteSh
    raise SSHConnectionError(e.result.error)
SSHConnectionError: ssh: connect to host 100.115.230.64 port 22: Connection timed out

Another example on reef-paladin

https://luci-milo.appspot.com/buildbot/chromeos/reef-paladin/3284


SSHConnectionError: ssh: connect to host chromeos2-row7-rack6-host17 port 22: Connection timed out
  Traceback (most recent call last):
    File "/usr/local/autotest/client/common_lib/test.py", line 806, in _call_test_function
      return func(*args, **dargs)
    File "/usr/local/autotest/client/common_lib/test.py", line 470, in execute
      dargs)
    File "/usr/local/autotest/client/common_lib/test.py", line 347, in _call_run_once_with_retry
      postprocess_profiled_run, args, dargs)
    File "/usr/local/autotest/client/common_lib/test.py", line 380, in _call_run_once
      self.run_once(*args, **dargs)
    File "/usr/local/autotest/server/site_tests/provision_AutoUpdate/provision_AutoUpdate.py", line 113, in run_once
      force_full_update=force)
    File "/usr/local/autotest/server/afe_utils.py", line 118, in machine_install_and_update_labels
      *args, **dargs)
    File "/usr/local/autotest/server/hosts/cros_host.py", line 802, in machine_install_by_devserver
      force_original=force_original)
    File "/usr/local/autotest/client/common_lib/cros/dev_server.py", line 2219, in auto_update
      error_msg % (host_name, error_list[0]))
  DevServerException: CrOS auto-update failed for host chromeos2-row7-rack6-host17: SSHConnectionError: ssh: connect to host chromeos2-row7-rack6-host17 port 22: Connection timed out