I've been trying my luck at bootstrapping rust 1.20.0 from mrustc. I wanted to open this thread so we can discuss our findings and methodologies.

Here are the resources I've found, where others are attempting the same thing:

Slackware (0.19.0 - 1.30.1)

https://github.com/aclemons/slack-rust-bootstrap

GUIX (plan only)

https://bootstrapping.miraheze.org/wiki/Boostrapping_Specific_Languages#Rust

Arch Linux (0.19.0 only)

mrustc and minicargo: https://aur.archlinux.org/packages/mrustc-git
rust=1.19.0: https://aur.archlinux.org/packages/rust-mrustc/

From my experience, the build instructions are quite fragile, and would perhaps be improved when thepowersgang/mrustc#88 gets merged.