title: How difficult is it to allow parallel compilation of code with the Rust stable and nightly channels?
body: <p>The default file-tree created by Cargo allows parallel compilation of release and debug builds as they are located in their own directories; <code>target/release</code> and <code>target/debug</code>, respectively.</p>
  
  <p>How difficult is it to also allow parallel compilation of <code>stable</code>/<code>nightly</code>-compiler. For example using the directories </p>
  
  <ul>
  <li><code>target/debug/stable</code></li>
  <li><code>target/debug/nightly</code></li>
  </ul>
  
  <p>I am aware it can be done with jails/containers, but I was hoping for a somewhat more Cargo-ish solution.</p>