I'm considering changing the workers to not automatically exit once the last hook has finished. Ordinarily the event loop will drain and the process will exit on its own. However if some code is still running it could be part of a test. It may even call an assertion that should really cause the test to fail (see #1330).

Changing this behavior will encourage code that cleans up after itself. However I think we'd need an option to revert to the original behavior.

The --timeout option will apply to this to clean up workers that aren't exiting on their own. We should report the offending test files.

Interrupting AVA should do the same (see #583).

Thoughts?