I think I get this email if I boot within roughly a couple of hours (due to my longer /etc/anacrontab delays) of 07:30 local time. Perhaps an anacron from boot time is sleeping for those delays and meanwhile, at 07:30, cron attempts to `start -q anacron', causing noise and the email. Others could test this by either booting shortly before 07:30 or, perhaps more easily :-), altering the 07:30 to now plus five minutes and re-booting.
I think I get this email if I boot within roughly a couple of hours (due to my longer /etc/anacrontab delays) of 07:30 local time. Perhaps an anacron from boot time is sleeping for those delays and meanwhile, at 07:30, cron attempts to `start -q anacron', causing noise and the email. Others could test this by either booting shortly before 07:30 or, perhaps more easily :-), altering the 07:30 to now plus five minutes and re-booting.