Another cron trick is to use chronic/cronic before your command. It silences the command except for error states - cron likes to report any text it sees, which

Another cron trick is to use chronic/cronic before your command. It silences the command except for error states - cron likes to report any text it sees, which you don't want for non-error states. It also detects errors better than just assuming all errors happen on STDERR.