Good news: `-Z build-std` is available in nightly and various bleeding edge projects have switched to it https://github.com/rust-lang/wg-cargo-std-aware https:

Good news: `-Z build-std` is available in nightly and various bleeding edge projects have switched to it https://github.com/rust-lang/wg-cargo-std-aware https://github.com/rust-lang/wg-cargo-std-aware