title: Unable to import a module (struct) from the same folder
body: <p>I have 2 files: lib.rs and user.rs</p>
  
  <p><strong>user.rs:</strong></p>
  
  <pre><code>struct User { .... }
  </code></pre>
  
  <p>and <strong>lib.rs</strong>:</p>
  
  <pre><code>use User; //  unresolved import `User`
  </code></pre>
  
  <p>Whatever I tried it hasn't panned out, for example:</p>
  
  <pre><code>use self::User; //  unresolved import `User`
  use super::User;
  </code></pre>