Summary

upgrade actions/checkout from v4 to v7 and actions/cache from v4 to v6
replace the archived actions-rs/toolchain and actions-rs/cargo actions with dtolnay/rust-toolchain and direct Cargo/Cross commands
fix the two failing i686 clang-cl jobs by using the LLVM toolchain bundled with the Windows runner instead of the removed MSYS2 mingw-w64-i686-clang package
remove the deprecated MSYS2 MINGW32/MINGW64 dependency from Windows GNU testing by using the matching Rust GNU host toolchains
add read-only token permissions, stale-run cancellation, consistent timeouts, and a working llvm-mingw cache

Failure analysis

Both failures in run 30741090730 stop in msys2/setup-msys2 with error: target not found: mingw-w64-i686-clang. MSYS2 phased out its 32-bit environments and removed CLANG32, so the old C:/msys64/mingw32/bin/clang-cl.exe setup is no longer maintainable.

The replacement uses C:/Program Files/LLVM/bin/clang-cl.exe, which is provided by the GitHub-hosted Windows image and supports both MSVC targets. Windows GNU jobs now install the target-specific Rust host toolchain, including the official rust-mingw component, instead of relying on legacy MSYS2 environments.

Validation

go run github.com/rhysd/actionlint/cmd/actionlint@v1.7.12 -color .github/workflows/test.yml
cargo test --all-targets
cargo test --manifest-path psm/Cargo.toml --all-targets
git diff --check
GitHub Actions run 30741670026: all 201 jobs passed

stacker

Documentation

A stack-growth library for Rust. Enables annotating fixed points in programs where the stack may want to grow larger. Spills over to the heap if the stack has hit its limit.

This library is intended on helping implement recursive algorithms.

# Cargo.toml
[dependencies]
stacker = "0.1"

Platform Support

This library currently uses psm for its cross platform capabilities, with a notable exception of Windows, which uses an implementation based on Fibers. See the README for psm for the support table.

On all unsupported platforms this library is a noop. It should compile and run, but it won’t actually grow the stack and code will continue to hit the guard pages typically in place.

License

This project is licensed under either of

Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT or https://opensource.org/license/mit)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this project by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.