FAILURE: True is not false (AssertionError)
 Traceback (most recent call last):
   File "/data/mci/df477c885b6d5d0dcce66948e60866ab/src/test/test_change_stream.py", line 167, in test_aggregate_cursor_blocks
     self.assertFalse(t.is_alive())
 AssertionError: True is not false
 
 Stderr:
 Exception in thread Thread-5:
 Traceback (most recent call last):
   File "/opt/python/3.4/lib/python3.4/threading.py", line 911, in _bootstrap_inner
     self.run()
   File "/opt/python/3.4/lib/python3.4/threading.py", line 859, in run
     self._target(*self._args, **self._kwargs)
   File "/data/mci/df477c885b6d5d0dcce66948e60866ab/src/test/test_change_stream.py", line 162, in <lambda>
     target=lambda: changes.append(change_stream.next()))
   File "/data/mci/df477c885b6d5d0dcce66948e60866ab/src/pymongo/command_cursor.py", line 289, in next
     self._refresh()
   File "/data/mci/df477c885b6d5d0dcce66948e60866ab/src/pymongo/command_cursor.py", line 236, in _refresh
     self.__max_await_time_ms))
   File "/data/mci/df477c885b6d5d0dcce66948e60866ab/src/pymongo/command_cursor.py", line 158, in __send_message
     helpers._check_command_response(first)
   File "/data/mci/df477c885b6d5d0dcce66948e60866ab/src/pymongo/helpers.py", line 155, in _check_command_response
     raise OperationFailure(msg % errmsg, code, response)
 pymongo.errors.OperationFailure: operation was interrupted