Rufus schedule & passenger

I have an app deployed on passenger, with a periodic job scheduled
using rufus scheduler. It ran fine for a couple weeks, then
apparently just up and quit, with no indication of why. I found a
couple posts on the rufus mailing list suggesting maybe there were
issues with this combination (rufus & passenger):

http://groups.google.com/group/rufus-ruby/browse_thread/thread/8ca374769edf98b5

http://groups.google.com/group/rufus-ruby/browse_frm/thread/3583f4a29820e673

but nothing seems particularly definitive. Plus, my app ran fine for
a period of time, so they must not be completely incompatible. That
said, though, does anyone have anything authoritative to say about the
long term stability of this combo? Or any other hints for debugging
the situation? (I can’t seem to get any output from my job in the
Rails logs, but I don’t know if that’s because the job isn’t running
or because the logging isn’t working for some reason.)

Thanks,

-kevin