title: Possible to "fail fast" when running rake test w/ minitest 5?
body: <p>Is it possible to configure 'rake test' to stop running tests as soon as it hits a failure/exception?</p>
  
  <p>My setup:</p>
  
  <ul>
  <li>Rails 4.1</li>
  <li>Minitest 5.3.4</li>
  <li>Tapout (for formatting)</li>
  </ul>
  
  <p>I'd like to start the test suite and immediately stop if a test fails -- the default behavior is to keep running all the tests which, in some cases, is too much data (especially one small bug causes a ton of tests to suddenly fail.)</p>
  
  <p>I had a nice little setup going with the older version of Minitest (4.x) and the Turn gem by following this gist: (<a href="https://gist.github.com/dup2/6160098" rel="noreferrer">Add a simple fail-fast option to minitest/turn/minitest-rails</a>), but I'm working on a new Rails 4.1 app right now and Turn isn't compatible with Minitest 5 (yet).</p>
  
  <p>Any thoughts?</p>