&gt; I thought that rustc was boostrapped from the old c based compiler(allowing you to build clean from source)<p>What&#x27;s with all the baseless assumptions of the initial Rust compiler being written in either C or C++ in this thread?<p>Contrary to apparently popular belief, C and C++ aren&#x27;t some primordial lifeform compiler language which all language implementations have to be initially written in. Believe it or not, you can write a compiler in any (general purpose) programming language! Amazing, I know.