title: Resque priority queue with Heroku & Procfile. Crashes
body: <p>On my local machine I can do</p>
  
  <pre><code>QUEUES=a,b,c,d rake resque:work
  </code></pre>
  
  <p>And it processes those queues in that order. However, on Heroku Cedar I add this to my procfile:</p>
  
  <pre><code>worker: QUEUES=a,b,c,d exec bundle exec rake resque:work
  </code></pre>
  
  <p>And it crashes the app on deploy. I'm probably missing something dumb, but I'm stumped.</p>
  
  <p>PS I prefix the command with exec because of a bug with resque not properly decrementing the worker count.</p>