What they should do is put as much of `std` on crates.io as possible (only a tiny bit is rustc-specific). Then in conjunction with https://github.com/rust-lang/

What they should do is put as much of `std` on crates.io as possible (only a tiny bit is rustc-specific). Then in conjunction with https://github.com/rust-lang/wg-cargo-std-aware https://github.com/rust-lang/wg-cargo-std-aware uses can opt-in to to a `std-2.x`.