Herp, lock the mailbox before accessing it
Herp, lock the mailbox before accessing it

Just a bit of a brain-dead thread safety bug here. If you're trying to
synchronize access with mutexes, it helps to lock them.

dilumn/celluloid-io,kenichi/celluloid-io,marshall-lee/celluloid-io,celluloid/celluloid-io,ioquatix/celluloid-io