Brian Smith b349cecd06 CI: Avoid actions-rs/toolchain when we only need to use stable Rust.
GitHub Actions runners already have rustup with the stable toolchain
installed, apparently. actions-rs is going away and we don't want to
keep maintaining a fork with an unsupported upstream, so start the
process of dropping it.
2023-11-30 13:07:34 -08:00
..