Read Rust
mrustcI'm finally happy to announce that I've "finished" the 1.29 branch of mrustc (for those who don't know, mrustc is my attempt at making a rust compiler, primarily for breaking the bootstrap chain).
This version is capable of compiling both rustc 1.29 (and packaged cargo) AND rustc 1.19, both of which can compile their successors (1.20 and 1.30 - and 1.30 results in a binary equal output).