https://uberchromegw.corp.google.com/i/chromeos/builders/wolf-tot-paladin/builds/9782

http://cautotest/tko/retrieve_logs.cgi?job=/results/113290924-chromeos-test/

04/18 22:23:03.935 DEBUG|        base_utils:0185| Running 'ssh 100.115.219.130 'curl "http://100.115.219.130:8082/kill_au_proc?pid=26168&host_name=100.115.192.33"''
04/18 22:23:05.549 DEBUG|        dev_server:2070| Exception raised on auto_update attempt #3:
 Traceback (most recent call last):
  File "/home/chromeos-test/chromiumos/src/platform/dev/cros_update.py", line 246, in TriggerAU
    self._RootfsUpdate(chromeos_AU)
  File "/home/chromeos-test/chromiumos/src/platform/dev/cros_update.py", line 159, in _RootfsUpdate
    cros_updater.UpdateRootfs()
  File "/home/chromeos-test/chromiumos/chromite/lib/auto_updater.py", line 638, in UpdateRootfs
    raise RootfsUpdateError(error_msg % e)
RootfsUpdateError: Failed to perform rootfs update: DevServerStartupError('Timeout (30) waiting for remote devserver port_file',)
04/18 22:23:05.549 DEBUG|        dev_server:2076| Please see error details in log /usr/local/autotest/results/hosts/chromeos4-row1-rack4-host21/3405645-provision/20171804221227/autoupdate_logs/CrOS_update_100.115.192.33_26168.log
04/18 22:23:05.553 DEBUG|              test:0389| Test failed due to CrOS auto-update failed for host chromeos4-row1-rack4-host21: RootfsUpdateError: Failed to perform rootfs update: DevServerStartupError('Timeout (30) waiting for remote devserver port_file',). Exception log follows the after_iteration_hooks.
04/18 22:23:05.553 DEBUG|              test:0392| starting after_iteration_hooks
04/18 22:23:05.553 DEBUG|              test:0395| after_iteration_hooks completed
04/18 22:23:05.554 WARNI|              test:0615| The test failed with the following exception
Traceback (most recent call last):
  File "/usr/local/autotest/client/common_lib/test.py", line 609, in _exec
    _call_test_function(self.execute, *p_args, **p_dargs)
  File "/usr/local/autotest/client/common_lib/test.py", line 823, in _call_test_function
    raise error.UnhandledTestFail(e)
UnhandledTestFail: Unhandled DevServerException: CrOS auto-update failed for host chromeos4-row1-rack4-host21: RootfsUpdateError: Failed to perform rootfs update: DevServerStartupError('Timeout (30) waiting for remote devserver port_file',)
Traceback (most recent call last):
  File "/usr/local/autotest/client/common_lib/test.py", line 817, 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 206, in machine_install_and_update_labels
    *args, **dargs)
  File "/usr/local/autotest/server/hosts/cros_host.py", line 748, in machine_install_by_devserver
    full_update=force_full_update)
  File "/usr/local/autotest/client/common_lib/cros/dev_server.py", line 2132, in auto_update
    raise DevServerException(error_msg % (host_name, error_list[0]))
DevServerException: CrOS auto-update failed for host chromeos4-row1-rack4-host21: RootfsUpdateError: Failed to perform rootfs update: DevServerStartupError('Timeout (30) waiting for remote devserver port_file',)