[charliermarsh]

Summary

• Use the integer bit APIs stabilized in Rust 1.97 for packed node indices, token capacity, rule iteration, and type-variable support sets.
• Use Cargo's warning policy in our native and WASM Clippy checks, keeping warnings fatal without changing compiler flags and invalidating the build cache. Update the contributing guides to match.

Preserves the Rust 1.97 MSRV. The warning policy change follows astral-sh/uv#22122.

[astral-sh-bot]

Typing conformance results

No changes detected ✅

Current numbers

The percentage of diagnostics emitted that were expected errors held steady at 98.24%. The percentage of expected errors that received a diagnostic held steady at 98.24%. The number of fully passing files held steady at 134/146.

[astral-sh-bot]

ecosystem-analyzer results

No diagnostic changes detected ✅

Full report with detailed diff (timing results)

[astral-sh-bot]

Memory usage report

Memory usage unchanged ✅

[astral-sh-bot]

ruff-ecosystem results

Linter (stable)

✅ ecosystem check detected no linter changes.

Linter (preview)

✅ ecosystem check detected no linter changes.

Formatter (stable)

✅ ecosystem check detected no format changes.

Formatter (preview)

✅ ecosystem check detected no format changes.

[codspeed]

Merging this PR will improve performance by 4.19%

⚡ 1 improved benchmark
✅ 221 untouched benchmarks

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	WallTime	auto_imports[namespace-package/after-module-create]	29.5 ms	28.3 ms	+4.19%

Tip

Curious why performance improved? Comment @codspeedbot explain why performance improved on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing charlie/rust-1.97-apis (4c18fe8) with main (a81291e)}