I thought that rustc was boostrapped from the old c based compiler(allowing you to build clean from source) multiple times(C -&gt; Rust 0.x? -&gt; Rust 1.0)?<p>From what I last saw of cargo there&#x27;s not a clean path that lets you build from source that doesn&#x27;t involve pulling binaries(and is really painful if you want to use cargo on a non-binary platform like RPi.