msgpack content-encoding should be 'binary', not 'utf-8'.  See Celery #231 (https://github.com/ask/celery/issues#issue/231)
msgpack content-encoding should be 'binary', not 'utf-8'.  See Celery #231 (https://github.com/ask/celery/issues#issue/231)

ask/carrot,ask/carrot