[sachio222]

Every push to any branch now runs CI, so Windows test failures show up on the branch instead of on release day. Builds now hit their cache reliably. A whole run still takes about 32 minutes, because Windows spends 25 to 29 minutes running the tests themselves.

Run times

Minutes per job. Baseline is run 40445557572 on main, which restored a warm Swatinem cache. The first run on this branch started with an empty cache (40455857892), and the second restored it (40462778615).

Job	Baseline	First run	Cached run
Test (windows-latest)	31.8	35.9	31.8
Windows: build the tests	3.1	10.4	2.1
Windows: run the tests	27.9	25.0	29.2
Build for Linux aarch64	18.5	19.4	17.7
Test (macos-15-intel)	9.9	10.9	7.4
Test (macos-14)	4.3	8.0	5.0
Test (ubuntu-24.04)	4.1	6.1	4.3
Release-style build	2.4	5.7	2.5
Format and clippy	0.6	4.8	0.7

On main, Windows sometimes found no cache and built for 17.3 minutes (run 40328135709). With line tables only, an empty-cache Windows build now takes 10.4 minutes.

Windows fails the same nine drop-path tests on this branch as on main. #4 fixes them.

What changed in ci.yml

• Pushes to any branch run every job. A pull request from a branch in this repository skips its own run, because the push already tested the same commit. Pull requests from forks still run in full.
• A newer push to a branch cancels the older run on that branch. Each commit on main keeps its own run.
• actions/cache replaces Swatinem/rust-cache. The key names the job, the runner, rust-toolchain.toml and Cargo.lock, with a fallback to the newest cache for the same job, runner and toolchain. The old Windows key also hashed whichever Rust the runner image preinstalled, so it changed with image updates.
• A job saves its cache only when no exact match exists and its build passed, so a failing test still leaves the build cached. Branches whose Cargo.lock matches main read main's cache and save nothing.
• Before saving, cargo clean -p removes the workspace's own crates, which every commit rebuilds. A restored target/ over 4 GB is thrown away, so old dependency versions cannot pile up. Each job's cache is 231 to 302 MB, about 1.9 GB for all seven, against the 10 GB repository limit.
• Test builds keep line tables only (CARGO_PROFILE_DEV_DEBUG=line-tables-only) and run with CARGO_INCREMENTAL=0. Tests build with --no-run first, so the log shows build time and test time as separate steps.
• On the first push of a new branch, the crate age check compares with the commit where the branch left main. Before, it checked every crate again.

Operating systems, features, test commands and jobs are unchanged. sh scripts/workflow-check.sh .github/workflows/*.yml and sh scripts/workflow-check-test.sh pass.

[sachio222]

Merged to main from branch ci-cache, the same commits moved onto 0.6.1, with a timing test given more room.