I am running rsyslogd with runit.

I added "sv hup rsyslog" to the end of /etc/cron.daily/logrotate file, I expect this should fix the problem.

Edit: I am using runit as init in case this matters.

yes it does: are you running rsyslog with a runit service or as sysv script?

If you use a runit service you may have to add a cronjob with
(assuming that your service is called 'rsyslogd')

sv hup rsyslogd

if you are using the old sysvscript, have a look at /usr/lib/rsyslog/rsyslog-rotate;
recent version of the Debian package are using code that is a noop on non-systemd systems.
if that's the case, you need to create a cron job with

if [ -x /etc/init.d/rsyslog ]; then
    invoke-rc.d rsyslog rotate > /dev/null
fi

I'm not sure if Devuan has it's own version of rsyslog package, but still worth a check

I used netinstall dvd, and I removed anacron after the install finished.  Using the plain old cron.

ls -l /usr/sbin/anacron.orig.anacron

If it does, run the following (as root): 

rm /usr/sbin/anacron
dpkg-divert --rename --remove /usr/sbin/anacron

Thanks.

Edit: I am using runit as init in case this matters.