fcrontab is set 6110 and UID/GID cron:cron which requires a user to be a member of group cron, but besides of that, a user also needs to be in /etc/fcron/fcron.allow to use cron. That is quite confusing. There should be chosen one (orthogonal) way. Observed with: sys-apps/cronbase-0.2.1-r2 sys-apps/fcron-2.0.0-r3 Reproducible: Always Steps to Reproduce: 1. 2. 3.
the setuid cron stuff is Gentoo while the fcron.allow is fcron mechanism ... ive changed the fcron.{allow,deny} to allow everyone so that the default behavior is maintained across all crontab services in gentoo ... if the end user so wishes, they can tweak the fcron files themselves