title: Heroku deploy with Docker, can not login?
body: <p>Following some tutorials, on Windows 7, I installed the Heroku CLI (first Git, then Heroku-x64). Git has several options to select during installation, I kept it default for most of them, except the editor and the interface: my choice is mintty. In mintty I changed my Git username and email.</p>
  
  <p>After installing Heroku-x64, mintty still does not support the <code>heroku</code> command. And there's nothing to run in Heroku-x64's folder, so I use system's <code>cmd.exe</code> instead, and it supports the <code>heroku</code> command.</p>
  
  <p>Now, following tutorials, I run <code>heroku container:login</code>, several seconds later it says</p>
  
  <pre><code>! not logged in
  </code></pre>
  
  <p>Shouldn't it ask me to input my Heroku username and password?</p>