Seems some formats were changed recently.
```
12:15:02 ======================================================================
12:15:02 FAIL: test_archivebot_zh_yue (tests.archivebot_tests.TestArchiveBot) (content='5|William915]]（[[User Talk:William915|傾偈]]） 2009年5月27號 (三) 06:25 (UTC)\n\n', thread='Xqt，歡迎加入[[粵語維基百科]]！')
12:15:02 Test archivebot for one site on wikipedia:zh-yue
12:15:02 ----------------------------------------------------------------------
12:15:02 Traceback (most recent call last):
12:15:02 File "/src/tests/archivebot_tests.py", line 144, in test_archivebot
12:15:02 self.assertIsInstance(thread.timestamp, datetime)
12:15:02 AssertionError: None is not an instance of <class 'datetime.datetime'>
12:15:02
12:15:02 ======================================================================
12:15:02 FAIL: test_archivebot_zh_yue (tests.archivebot_tests.TestArchiveBot) (content='lk:Hillgentleman|書]]|[[2011年|二零一一年]][[五月二十七號]]（星期五）[[格林威治]] 05點16分03秒。>\n', thread='[[user:xqbot]]')
12:15:02 Test archivebot for one site on wikipedia:zh-yue
12:15:02 ----------------------------------------------------------------------
12:15:02 Traceback (most recent call last):
12:15:02 File "/src/tests/archivebot_tests.py", line 144, in test_archivebot
12:15:02 self.assertIsInstance(thread.timestamp, datetime)
12:15:02 AssertionError: None is not an instance of <class 'datetime.datetime'>
12:15:02
12:15:02 ----------------------------------------------------------------------
```