title: Unable to install heroku gem on ruby 1.8.6
body: <p>I’m facing trouble trying to install the latest version of heroku gem (gives me an “abort trap” message). Currently it’s 2.17.0.</p>
  
  <p>I’ve been able to install 2.3.6, and nothing greater (from 2.4 up I receive the “abort trap” message).</p>
  
  <p>I’m using OS X Snow Leopard.</p>