Hey guys,
I'm not sure if that was intentional, but resque-pool 0.5.0 (specifically, this commit: 2f91e91) changed the way shutdown? method works and now there is no way to run rake resque:work without resque pool - it just exits immediately upon exiting the main processing loop (since there are no parent pids registered by resque-pool).
Basically, this means that by simply including resque-pool in a Gemfile of a project one loses ability to use resque without executing the resque-pool command.