title: Rails/Rubber can't create staging
body: <p>Trying to get started with a Rails Amazon EC2 deployment using <a href="https://github.com/rubber/rubber" rel="nofollow">https://github.com/rubber/rubber</a>, and I keep ending up here after attempting to create a staging server with <code>cap rubber:create_staging</code>:</p>
  
  <pre><code>** [out :: production.foo.com] curl: (7) couldn't connect to host command finished in 2022ms
  failed: "/bin/bash -l -c 'sudo -p '\\''sudo password: '\\''  bash -l /tmp/create_inputs'" on production.foo.com
  </code></pre>
  
  <p>I've been sticking with Rubber's <a href="https://github.com/rubber/rubber/wiki/Quick-Start" rel="nofollow">quickstart guide</a>, but can't solve this.  I'm using rvm, if that makes a difference to anyone.  </p>
  
  <p>Any ideas?  </p>