This same bug has occurred after upgrading to the Heron. Same error about permission on the /var/spool/cron/atjobs directory.
Apr 12 16:19:49 scytel atd[1656]: Cannot change to /var/spool/cron/atjobs: Permission denied
scytel% sudo ls -hl /var/spool/cron total 0 drwxrwx--T 2 daemon daemon 72 2008-04-12 15:43 atjobs drwxrwx--T 2 daemon daemon 48 2007-02-20 13:41 atspool drwx-wx--T 2 root crontab 48 2008-04-06 23:02 crontabs
This same bug has occurred after upgrading to the Heron. Same error about permission on the /var/spool/ cron/atjobs directory.
Apr 12 16:19:49 scytel atd[1656]: Cannot change to /var/spool/ cron/atjobs: Permission denied
scytel% sudo ls -hl /var/spool/cron
total 0
drwxrwx--T 2 daemon daemon 72 2008-04-12 15:43 atjobs
drwxrwx--T 2 daemon daemon 48 2007-02-20 13:41 atspool
drwx-wx--T 2 root crontab 48 2008-04-06 23:02 crontabs