We're getting the following daily cron message from labtestcontrol2001. First occurrence on February 24th:
From: Cron Daemon <root@labtestcontrol2001.wikimedia.org>
Date: Fri, 24 Feb 2017 00:00:04 +0000
To: root@labtestcontrol2001.wikimedia.org
Subject: Cron <root@labtestcontrol2001> invoke-rc.d atop _cron
Message-Id: <E1ch3Iq-0000A3-J8@labtestcontrol2001.wikimedia.org>
Do the thing