https://static.rust-lang.org/dist/rustc-1.42.0-src.tar.xz
https://static.rust-lang.org/dist/2020-02-27/rust-std-1.41.1-x86_64-unknown-linux-musl.tar.xz?no-extract
https://static.rust-lang.org/dist/2020-02-27/rustc-1.41.1-x86_64-unknown-linux-musl.tar.xz?no-extract
https://static.rust-lang.org/dist/2020-02-27/cargo-0.42.0-x86_64-unknown-linux-musl.tar.xz?no-extract
patches/musl.patch