chore(deps): bump actions-rust-lang/setup-rust-toolchain from 1.17.0 to 2.0.0 in the github-actions group

[dependabot]

Bumps the github-actions group with 1 update: actions-rust-lang/setup-rust-toolchain.

Updates actions-rust-lang/setup-rust-toolchain from 1.17.0 to 2.0.0

Release notes

Sourced from actions-rust-lang/setup-rust-toolchain's releases.

v2.0.0

What's Changed

• Use CARGO_BUILD_WARNINGS for enforcing warning free compilations (#98) This is a new variable supported by cargo 1.97+ and sets the build.warnings config. It allows removing the RUSTFLAGS="-D warnings" default, which will improve compatibility with target.*.rustflags and .cargo/config.toml files.

  This adds a new build-warnings input to configure the value for the build.warnings config.

• Add error matcher for Rust panics This will highlight the location of the panic location during tests.

• Reuse output of rustc --version --verbose calls (#103 by @​ChihweiLHBird)

New Contributors

• @​ChihweiLHBird made their first contribution in actions-rust-lang/setup-rust-toolchain#103

Full Changelog: actions-rust-lang/setup-rust-toolchain@v1.17.0...v2.0.0

Changelog

Sourced from actions-rust-lang/setup-rust-toolchain's changelog.

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

[2.0.0] - 2026-09-07

• Use CARGO_BUILD_WARNINGS for enforcing warning free compilations (#98) This is a new variable supported by cargo 1.97+ and sets the build.warnings config. It allows removing the RUSTFLAGS="-D warnings" default, which will improve compatibility with target.*.rustflags and .cargo/config.toml files.

  This adds a new build-warnings input to configure the value for the build.warnings config.

• Add error matcher for Rust panics This will highlight the location of the panic location during tests.

• Reuse output of rustc --version --verbose calls (#103 by @​ChihweiLHBird)

[1.17.0] - 2026-06-25

• Add new parameter cache-targets that is propagated to Swatinem/rust-cache as cache-targets (#84). This allows disabling caching of the workspace target directory, e.g. when using sccache, while keeping the rest of the cache enabled.

[1.16.1] - 2026-05-08

• Renamed internally used variable to avoid clashes with globally existing variables. This fixes the interference of the TOOLCHAIN variable as reported in #91.

[1.16.0] - 2026-04-13

• Add new parameter cache-save-if that is propagated to Swatinem/rust-cache as save-if (#90 by @​ChanTsune)

[1.15.4] - 2026-03-15

• Bump Swatinem/rust-cache from 2.8.2 to 2.9.1 (#87 by @​hyperfinitism) This gets rid of the warnings about Node.js 20.

[1.15.3] - 2026-03-01

• Bump Swatinem/rust-cache from 2.8.1 to 2.8.2

[1.15.2] - 2025-10-04

• Fix: Run the version detection steps in the selected rust-src-dir directory. This should enable the version selection even without a default toolchain installed. Fixes #74.

[1.15.1] - 2025-09-23

... (truncated)

Commits

• ecabd13 Prepare changelog for 2.0.0 release
• dc00391 Add error matcher for Rust panics
• 70de7eb Merge pull request #103 from ChihweiLHBird/reuse-rustc-verbose-output
• c420b69 Merge pull request #105 from actions-rust-lang/use-build-warnings
• d94d10a Use CARGO_BUILD_WARNINGS for enforcing warning free compilations
• 34430aa Reuse rustc verbose output instead of invoking rustc three times.
• 0267444 Merge pull request #102 from actions-rust-lang/dependabot/github_actions/Swat...
• 5fa2882 Bump Swatinem/rust-cache from 2.9.1 to 2.9.2
• 8439c15 Merge pull request #100 from actions-rust-lang/dependabot/github_actions/acti...
• c8f944a Bump actions/checkout from 7.0.0 to 7.0.1
• See full diff in compare view

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Summary by CodeRabbit

• Chores
  • Updated Rust toolchain setup across automated audit, benchmarking, CI, coverage, and linting workflows.
  • Pinned the workflows to the newer toolchain setup action version.

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ℹ️ Recent review info

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Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Essentials

Run ID: 07b2b5e1-e161-43c0-96d9-53de165f9701

📥 Commits

Reviewing files that changed from the base of the PR and between 0215e65 and 1c52c3d.

📒 Files selected for processing (5)

• .github/workflows/audit.yml
• .github/workflows/benchmarks.yml
• .github/workflows/ci.yml
• .github/workflows/codecov.yml
• .github/workflows/rust-clippy.yml

Included review availability: 3 reviews are currently available. Your included PR review attempts over the past 7 days set your current allowance at 4 reviews per hour.

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📝 Walkthrough

Walkthrough

Five GitHub Actions workflows update actions-rust-lang/setup-rust-toolchain from v1.17.0 to the pinned v2.0.0 revision.

Changes

Rust toolchain action update

Layer / File(s)	Summary
Update workflow action pins .github/workflows/audit.yml, .github/workflows/benchmarks.yml, .github/workflows/ci.yml, .github/workflows/codecov.yml, .github/workflows/rust-clippy.yml	The workflows now use the pinned v2.0.0 Rust toolchain setup action instead of v1.17.0.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 1c52c

All reviewed workflows receive the intended pinned action update, with no concrete merge-blocking risk identified.

🚥 Pre-merge checks | ✅ 2 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Linked Issues check	⚠️ Warning	Issue #74 requires a GitHub Actions workflow for exact-arithmetic benchmark regression detection. The workflow must save main Criterion baselines as 30-day artifacts, download the latest main arti…	Add the workflow and automated validation required by issue #74. Configure push-to-main baseline artifacts with 30-day retention, pull-request artifact download and Criterion comparison, and non-blocking job-summary reporting.
Out of Scope Changes check	⚠️ Warning	The changes update actions-rust-lang/setup-rust-toolchain from 1.17.0 to 2.0.0 in audit.yml, benchmarks.yml, ci.yml, codecov.yml, and rust-clippy.yml. These dependency updates have no demo…	Remove these unrelated toolchain action updates from this pull request, or link them to a requirement that explicitly covers the dependency update.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately identifies the dependency update from actions-rust-lang/setup-rust-toolchain 1.17.0 to 2.0.0 in GitHub Actions. It clearly summarizes the main change.

Full details: Linked Issues check

Explanation

Issue #74 requires a GitHub Actions workflow for exact-arithmetic benchmark regression detection. The workflow must save main Criterion baselines as 30-day artifacts, download the latest main artifact for pull requests, compare with --baseline, and report warning-only regressions in the job summary. The PR summary shows only actions-rust-lang/setup-rust-toolchain updates in five existing workflows. It does not show implementation or tests for these requirements.

Full details: Out of Scope Changes check

Explanation

The changes update actions-rust-lang/setup-rust-toolchain from 1.17.0 to 2.0.0 in audit.yml, benchmarks.yml, ci.yml, codecov.yml, and rust-clippy.yml. These dependency updates have no demonstrated connection to the exact-arithmetic benchmark regression workflow required by issue #74.

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