File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/root/chromeos-admin/venv/admin/scripts/is_prod_machine.py", line 93, in <module>
  File "/root/chromeos-admin/venv/admin/scripts/is_prod_machine.py", line 30, in main
  File "/root/chromeos-admin/venv/admin/scripts/is_prod_machine.py", line 56, in _is_prod
  File "/root/chromeos-admin/venv/admin/scripts/is_prod_machine.py", line 70, in _is_prod_usin
g_atest
  File "/root/chromeos-admin/venv/admin/atest.py", line 49, in get_prod_hostnames
  File "/root/chromeos-admin/venv/admin/atest.py", line 55, in _get_server_list
  File "/root/chromeos-admin/venv/admin/atest.py", line 45, in __call__
  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 1326, in _execute_child
    child_exception = pickle.loads(data)
  File "/usr/lib/python2.7/pickle.py", line 1382, in loads
    return Unpickler(file).load()
  File "/usr/lib/python2.7/pickle.py", line 858, in load
    dispatch[key](self)
  File "/usr/lib/python2.7/pickle.py", line 971, in load_string
    self.append(rep.decode("string-escape"))