> PUT msg 0
< GET msg 0 [waited 0.0s][511.25 reqs/sec]
> PUT msg 1
> PUT msg 2
< GET msg 1 [waited 0.0s][439.56 reqs/sec]
/Users/rud/.rvm/gems/ruby-1.9.2-head@bundler/gems/amq-client-0.8.3/lib/amq/client/async/consumer.rb:246:in `block in <class:Consumer>': undefined method `handle_delivery' for nil:NilClass (NoMethodError)
	from /Users/rud/.rvm/gems/ruby-1.9.2-head@bundler/gems/amq-client-0.8.3/lib/amq/client/async/adapter.rb:535:in `call'
	from /Users/rud/.rvm/gems/ruby-1.9.2-head@bundler/gems/amq-client-0.8.3/lib/amq/client/async/adapter.rb:535:in `receive_frameset'
	from /Users/rud/.rvm/gems/ruby-1.9.2-head@bundler/gems/amq-client-0.8.3/lib/amq/client/async/adapter.rb:514:in `receive_frame'
	from /Users/rud/.rvm/gems/ruby-1.9.2-head@bundler/gems/amq-client-0.8.3/lib/amq/client/async/adapters/event_machine.rb:326:in `receive_data'
	from /Users/rud/.rvm/gems/ruby-1.9.2-head@bundler/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run_machine'
	from /Users/rud/.rvm/gems/ruby-1.9.2-head@bundler/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
	from demo-amqp-one-message-subscribers.rb:57:in `<main>'