[pingyu]

Summary

• Add the rust-analyzer component to the pinned Rust 1.93.0 toolchain so VS Code can use the toolchain-compatible analyzer rather than warning about its newer bundled server.
• Add rust-src so rust-analyzer has the matching standard-library source for navigation and analysis on a fresh installation.
• Set profile = "minimal" to avoid downloading the default profile's extra components (notably local Rust documentation) while explicitly retaining the project's rustfmt and clippy components.

Fixes #574.

Verification

• rustup show active-toolchain: 1.93.0-aarch64-apple-darwin
• rustup component list --installed: rust-src, rust-analyzer, rustfmt, and clippy present
• rustup run 1.93.0 rust-analyzer --version: rust-analyzer 1.93.0
• cargo check --lib --locked: passed
• cargo test --locked: passed (135 unit tests and 50 doctests; integration tests require their opt-in features and a TiKV cluster)

The build still reports the existing unused-assignment warning in src/common/errors.rs; this PR does not change Rust source.

Summary by CodeRabbit

• Chores
  • Updated the Rust development setup with additional tooling and a minimal toolchain profile. There are no user-facing feature changes in this update.

[coderabbitai]

Important

Review skipped

Review was skipped as selected files did not have any reviewable changes.

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: d58829be-e7e5-49fd-a7ec-93777efe3be7

📥 Commits

Reviewing files that changed from the base of the PR and between 5290558 and 467e039.

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: ca0f08bd-696e-4b2b-b19a-221056af5be2

📥 Commits

Reviewing files that changed from the base of the PR and between 3408d95 and 5290558.

📒 Files selected for processing: 1

• rust-toolchain.toml

Included review availability: This review used your included allowance. Your plan provides up to 2 included reviews per hour; 1 remain after this review.

📝 Walkthrough

The pinned Rust toolchain now uses the minimal profile and includes rust-src and rust-analyzer alongside rustfmt and clippy.

Changes: Toolchain configuration

Layer / File(s)	Summary
Configure toolchain components rust-toolchain.toml	The configuration sets the minimal profile and adds rust-src and rust-analyzer to the existing rustfmt and clippy components.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~5 minutes

Change: Other · Severity of issue fixed: Low

Suggested reviewers: xuanwo

Merge Risk: ⚪ Minimal · up to 52905

This is a scoped toolchain update, and no concrete merge-blocking risk is evident.

Pre-merge checks: 5

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly describes the main change: adding IDE-related components to the pinned Rust toolchain.
Linked Issues check		Issue #574 requires the pinned Rust 1.93.0 toolchain to declare rust-analyzer and rust-src, use the minimal profile, and retain rustfmt and clippy. rust-toolchain.toml now declares all fou…
Out of Scope Changes check		The whole-PR diff changes only rust-toolchain.toml. Each change directly implements the requirements in issue #574. No unrelated source or configuration change is present.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…

Full details: Linked Issues check

Explanation

Issue #574 requires the pinned Rust 1.93.0 toolchain to declare rust-analyzer and rust-src, use the minimal profile, and retain rustfmt and clippy. rust-toolchain.toml now declares all four components and profile = "minimal". The PR also reports successful toolchain and build verification.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[pingyu]

/cc @YuJuncen @iosmanthus

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: iosmanthus, YuJuncen

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [YuJuncen,iosmanthus]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-10-19 04:39:57.930501814 +0000 UTC m=+1224407.677732653: ☑️ agreed by YuJuncen.
• 2026-10-19 05:15:17.293521019 +0000 UTC m=+1226527.040751868: ☑️ agreed by iosmanthus.
• 2026-10-19 05:15:25.080936509 +0000 UTC m=+1226534.828167348: ✖️🔁 reset by iosmanthus.
• 2026-10-19 05:20:53.077267134 +0000 UTC m=+1226862.824497983: ☑️ agreed by iosmanthus.
• 2026-10-19 05:24:44.176283384 +0000 UTC m=+1227093.923514233: ☑️ agreed by YuJuncen.