Traceback (most recent call last):
  File "c:\python27\lib\unittest\case.py", line 329, in run
    testMethod()
  File "C:\Users\jenkins\workspace\elastic+beats+pull-request+multijob-windows\beat\filebeat\label\windows\src\github.com\elastic\beats\filebeat\tests\system\test_crawler.py", line 307, in test_file_disappear_appear
    max_timeout=15)
  File "C:\Users\jenkins\workspace\elastic+beats+pull-request+multijob-windows\beat\filebeat\label\windows\src\github.com\elastic\beats\filebeat\tests\system\../../../libbeat/tests/system\beat\beat.py", line 337, in wait_until
    "Waited {} seconds.".format(max_timeout))
TimeoutError: Timeout waiting for 'cond' to be true. Waited 15 seconds.