cronjob testing push always fail at updating servers due to the error:
chromeos-autotest.hot.corp.google.com: Command failed with error: Command '/usr/local/autotest/site_utils/deploy_server_local.py --update_push_servers' returned non-zero exit status 1
[4/5] Try to update server chromeos-autotest.hot.corp.google.com
Running command: /usr/local/autotest/site_utils/deploy_server_local.py --update_push_servers
ERROR: '/usr/local/autotest/site_utils/deploy_server_local.py --update_push_servers' failed with error:
Checking tree status:
OSError: [Errno 2] No such file or directory

chromeos-autotest.hot.corp.google.com: Command failed with error: Command '/usr/local/autotest/site_utils/deploy_server_local.py --update_push_servers' returned non-zero exit status 1
Time used to update server chromeos-autotest.hot.corp.google.com: 3.86910009384
Failed to update server chromeos-autotest.hot.corp.google.com.
Error: Checking tree status:
Traceback (most recent call last):
  File "/usr/local/autotest/site_utils/deploy_server_local.py", line 521, in <module>
    sys.exit(main(sys.argv[1:]))
  File "/usr/local/autotest/site_utils/deploy_server_local.py", line 491, in main
    verify_repo_clean()
  File "/usr/local/autotest/site_utils/deploy_server_local.py", line 83, in verify_repo_clean
    out = subprocess.check_output(['repo', 'status'], stderr=subprocess.STDOUT)
  File "/usr/lib/python2.7/subprocess.py", line 566, in check_output
    process = Popen(stdout=PIPE, *popenargs, **kwargs)
  File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
Errors updating:
  chromeos-autotest.hot.corp.google.com



However, manually kicking off the same script the cronjob uses pass successfully