[Filebeat] Flaky test test_crawler.Test.test_file_disappear_appear

[jsoriano]

Flaky Test

• Test Name: test_crawler.Test.test_file_disappear_appear
• Link: https://github.com/elastic/beats/blob/5e99c7439c78/filebeat/tests/system/test_crawler.py#L266
• Branch: master (seen in Add flag to disable docker cpu metrics collection per core #9194)
• Notes: Windows, seen along with [Filebeat] Flaky test test_harvester.Test.test_close_removed #9214 [Filebeat] Flaky test test_registrar.Test.test_clean_removed_with_clean_inactive #9215

Stack Trace

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.