We have a number of Rake and Runner scripts that are executed by cron via the [Whenever gem](https://github.com/javan/whenever). We recently found one of them failed for more than a day and we didn't notice it. Is there a good way to catch and report on errors in background jobs? We have NewRelic for monitoring, but it doesn't seem to detect these problems.

Ideally I'd love a solution I can implement once that magically applies to all Whenever/cron Rake/Runner scripts.