title: TeamCity does not catch failing tests in minitest
body: <p>I have TeamCity up and running in a mac environment. A trigger is also setup to to run a rake task containing a number of test cases on every git commit. The rake command successfully pulls the code and runs the test cases. The passing test cases are shown correctly in the TeamCity interface, however, the failing test cases do not show up and the build is marked as successful. When I look at the error Build Log, failing tests are shown as errors. The question is why TeamCity is interpreting failing tests as errors and not as actual failing tests?</p>
  
  <p>The assertions are as simple as the following (obvious failure):</p>
  
  <pre><code>test 'simple_test' do
      a = 14
      ssert_equal 341, a
  ends
  </code></pre>
  
  <p>PS: the check box to fail the build upon at least one test fail is turned on in Failure Conditions(i.e. at least one test failed)</p>
  
  <pre><code>Ruby version = 2.2.2,
  Rails version = 4.2.1,
  TeamCity version =  9.1.1,
  Testing framework = minitest,
  </code></pre>
  
  <p>Here is the <a href="http://pastebin.com/z4Xjnygz" rel="nofollow">build log output</a></p>