New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/32362#issuecomment-901569133

Comment:
Per https://github.com/rust-lang/rust/issues/79121, this is still an unstable feature, and I don't think we should enable it in our distro toolchain. You probably want to use the `rustup` package and download nightly toolchains instead.