try twiddling the user_mode.

my @entries = DateTime::Event::Cron->new_from_crontab
              (file => '/tmp/crontab.out', user_mode => 0);
[download]

systemwide crontabs have a user field (gump):

* * * * * gump /bin/date
[download]

user crontabs don't:

* * * * * /bin/date
[download]