With the default PAM configuration file shipped with fcron-3.0.5 running: fcrontab -e systab produces: 03:47:30 Could not init PAM account management (10): User not known to the underlying authentication module
Uhm looking into it… not sure why it passed here, but I'm not surprised given the kind of PAM mess I have, will create a vanilla container to test this out, thanks for reporting!
Okay I guess this is half-way an upstream problem: it tries to authenticate the account of systab which obviously does not exist (it's a pseudo-user). I can fix this quickly for Linux-PAM users, but it will be a problem for OpenPAM users (it would use pam_succeed_if)… Looking into a possible alternative right now…
Okay the proper fix looks like it's definitely easy, will test it out, send upstream and add 3.0.5-r1 :)
Fixed as of 3.0.5-r1, thanks for reporting! :)