Besides whether or not cron is deprecated, this would not do what you want, not even in Linux.
Cron runs as a background process. The specific type is called a 'daemon' (pronounced demon). As such it has no terminal, and no terminal to write to. Its stdout and stderr are hooked to mail. Normally, you'd drop to your local inbox on your computer, but you've supplied a MAILTO setting, which redirects mail to that email address. This setup should send an email consisting solely of 'plop' to firstname.lastname@example.org, every minute. All output goes to this mail, not just debugging output.
For testing, I usually do a touch file someplace in /tmp. A cronjob of
date > /tmp/testdate.txt or equivalent will show you if and how often your cron fires.