Script admin/cron/slave.sh is the one you're adding in the crontab of a slave error.

mbserver@brainzvm:~/git/mb_server$ ./admin/cron/slave.sh
Can't locate object method "get_all_symbols" via package "Package::Stash" at ./admin/ShowDBDefs line 40.
./admin/cron/slave.sh: line 10: /slave.log: Permission denied
Tue May 17 08:37:38 CEST 2011 : LoadReplicationChanges failed (rc=1) - see /slave.log
error: error creating state file /.logrotate-state: Permission denied
error: stat of /slave.log failed: No such file or directory
error: could not read state file, will not attempt to write into it