2020  : Google brought me for something similar.

With distros that are using systemd, there is no more /var/log/messages or /var/log/cron.

With systemd, the journald daemon handles logging.

To see if cron is running your scripts and to follow the the log, use;

   journalctl -u cron.service -f
 

2020: Google brought me for something similar.

With distros that are using systemd, there is no more /var/log/messages or /var/log/cron.

With systemd, the journald daemon handles logging.

To see if cron is running your scripts and to follow the log, use;

journalctl -u cron.service -f