Exception from ProcessOutputHandler cause all handlers to stop #1
Description
In a process watcher, when a output handler raises an exception, it is not caught and the task fails. This failure aborts all handlers, not just the one failing.
An improvement would be to log the exception immediately and remove the handler (immediately or after a set number of exceptions). It isn't considered a bug since the process itself is not impacted and generally no handler should raise an exception which would bubble up to the process watcher.