Request for adding {free/hardened}bsd and linux-musl to official releases

[aidanhs]

@aidanhs

Could the default linux compiler come with both glibc and musl stdlib support? A rust compiler built with --target=x86_64-unknown-linux-musl is able to compile to glibc as well as musl, so this solves one major use-case (static compilation on glibc platforms).

Hardworking people have quietly made this suggestion a reality - the new rustup can download the musl stdlib for you. See Static binary support in rust - #53 by alexcrichton and the linked thread from there.