As discussed on IRC, cron jobs on Stage are currently failing. Mpressman is investigating; there may be something wrong with the python setup ...
Josh, I'm looking into stage now, can you post what cron jobs you think are failing and any debug?
Josh, any updates to which cron jobs are failing?
At the time of the original bug, all cron jobs were failing. Let's see what happens today in terms of them working or not.
So this seems to have worked itself out.