As far as i'm aware, the very first rust compiler was bootstrapped in C and the default rust compiler has since always been written in rust then compiled with i

As far as i'm aware, the very first rust compiler was bootstrapped in C and the default rust compiler has since always been written in rust then compiled with its previous version. above is "i'm pretty sure", but i _think_ the current rust compiler source has instructions on both how to build (with rust) and bootstrap (with C) it.