no crontab for root
no crontab for daemon
...
no crontab for apache2

From root@lxc2014.localdomain  Wed Aug  2 15:40:02 2017
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        id 03E571D666; Wed,  2 Aug 2017 15:40:02 +0000 (UTC)
From: root@lxc2014.localdomain (Cron Daemon)
To: root@lxc2014.localdomain
Subject: Cron <root@lxc2014> /dev/.x;^Mno crontab for root
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X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/root>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=root>
Message-Id: <20170802154002.03E571D666@lxc2014.localdomain>
Date: Wed,  2 Aug 2017 15:40:02 +0000 (UTC)

/bin/sh: 1: ^Mno: not found