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chore(deps): bump rust-toolchain from 1.97.1 to 1.98.1 - #301

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chore(deps): bump rust-toolchain from 1.97.1 to 1.98.1#301
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@dependabot dependabot Bot commented on behalf of github Sep 9, 2026

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Bumps rust-toolchain from 1.97.1 to 1.98.1.

Release notes

Sourced from rust-toolchain's releases.

Rust 1.98.1

Rust 1.98.0

Language

Platform Support

Refer to Rust's platform support page for more information on Rust's tiered platform support.

Libraries

Stabilized APIs

... (truncated)

Changelog

Sourced from rust-toolchain's changelog.

Version 1.98.1 (2026-09-03)

Version 1.98.0 (2026-08-20)

Language

Platform Support

Refer to Rust's platform support page for more information on Rust's tiered platform support.

Libraries

... (truncated)

Commits
  • 48a229c Auto merge of #161555 - lcnr:backport-erased-handling, r=Mark-Simulacrum
  • 4014df6 Bust sccache's cache
  • c1e5701 Add release notes
  • c10713e update version to 1.98.1
  • 41c7a25 add test
  • 9c0aebd rerun if we meet any opaques in post analysis
  • 88d9e12 Auto merge of #161313 - cuviper:stable-next, r=cuviper
  • 8f6f43c update relnotes
  • c6d0dd0 Bump stable channel
  • 824ef7e Revert "riscv: promote d, e, and f target_features to CfgStableToggleUnstable"
  • Additional commits viewable in compare view

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Bumps [rust-toolchain](https://github.com/rust-lang/rust) from 1.97.1 to 1.98.1.
- [Release notes](https://github.com/rust-lang/rust/releases)
- [Changelog](https://github.com/rust-lang/rust/blob/main/RELEASES.md)
- [Commits](rust-lang/rust@1.97.1...1.98.1)

---
updated-dependencies:
- dependency-name: rust-toolchain
  dependency-version: 1.98.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file rust_toolchain_package_manager Pull requests that update rust_toolchain_package_manager code labels Sep 9, 2026

@cwl-noema-review cwl-noema-review Bot left a comment

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Noema LLM review

The PR updates the Rust toolchain channel from 1.97.1 to 1.98.1, a straightforward version bump. The change does not alter any project source code or logic but may affect compilation behavior, linting, or formatting due to toolchain updates. The version string is valid, and the remaining toolchain configuration is unchanged. Regression hypotheses around compilation failures, unit test breakage, and component incompatibility were tested and falsified on both changed sides.

Reviewed changed lines

  • rust-toolchain.toml:2 (LEFT): The old channel version 1.97.1 is a valid stable Rust toolchain and the line is correctly formatted.
  • rust-toolchain.toml:2 (RIGHT): The new channel version 1.98.1 is a valid stable Rust toolchain. The change is a simple version bump with no additional syntax or configuration modifications.

Adversarial validation

  • rust-toolchain.toml:2 (LEFT) falsified: Moving from 1.97.1 to 1.98.1 introduces a compilation regression. — The project compiled successfully and unit tests passed with toolchain 1.98.1, falsifying the hypothesis that the bump causes a compilation or test regression.
  • rust-toolchain.toml:2 (RIGHT) falsified: Toolchain 1.98.1 is incompatible with the configured clippy/rustfmt components. — The components listed in the toolchain file remain compatible and execute successfully under 1.98.1, confirming no incompatibility was introduced.
  • Residual risk: Low. Toolchain upgrades can occasionally introduce subtle behavior changes in compiler internals, lint rules, or code generation that may only surface under broader workloads, but no concrete regression was identified for the changed line.

Findings

  • No blocking findings.
  • Result: APPROVE
  • Head SHA: ddff2b88a8557374237f916cfc3beaabf5629760
  • Reviewer credential: noema-review-github-app-refresh
  • Actor: cwl-noema-review[bot]

@seonghobae seonghobae left a comment

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현재 exact head ddff2b88a8557374237f916cfc3beaabf5629760은 병합할 수 없습니다.

프로젝트의 지원 Rust baseline은 AGENTS.md와 rust-toolchain.toml 계약에서 1.97.1으로 고정돼 있으며, 이 변경은 ADR·호환성·release 근거 없이 1.98.1로 바꿉니다. 정확한 Rust contracts run 34320596205test_toolchain_is_pinned_to_current_project_baselinetest_stable_toolchain_is_exact_and_automatically_tracked에서 같은 이유로 실패했습니다.

업그레이드가 필요하면 먼저 baseline 변경 ADR, lockfile/의존성 호환성 검증, 계약 테스트와 문서·CHANGELOG를 같은 PR에 포함하고 exact-head checks를 다시 통과시켜야 합니다. 그렇지 않으면 이 dependency PR은 현재 baseline을 유지해야 합니다.

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Exact-head toolchain-upgrade finding on ddff2b88a8557374237f916cfc3beaabf5629760: the Rust 1.98.1 manifest bump is valid candidate work, but it is not a self-contained mergeable upgrade. Native CI 34320596205 failed exactly at Python repository contracts because both tests/test_repository_contract.py and tests/test_rust_toolchain_contract.py still require 1.97.1; the Rust/Clippy/rustdoc lane therefore never ran. The same workflow generation also explicitly installs dtolnay/rust-toolchain with toolchain: 1.97.1 and installs cargo-llvm-cov via cargo +1.97.1, while the checked-in rust-toolchain.toml override makes ordinary cargo/rustc commands resolve to 1.98.1. That produces a split compiler-provenance story even before the tests are updated. Production coverage happened to pass, but it does not replace the failed repository/Rust gate. Preserve the 1.98.1 bump; repair this as a coordinated versioned-toolchain change: update the repository-owned expected baseline and documentation/CHANGELOG, and route CI/coverage pin changes through the canonical workflow owner rather than editing .github/** from the product lane. Then rerun exact-head repository contracts, formatting, workspace tests, strict Clippy, rustdoc and 100% coverage with one explicit stable version boundary. Do not weaken/delete the pinning regressions just to make Dependabot green.

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Repair successor opened as #308 from exact #301 head ddff2b88a8557374237f916cfc3beaabf5629760. It preserves the complete Rust 1.98.1 manifest delta and adds the missing exact baseline contracts, Proposed ADR 0115, AGENTS/README/documentation indexes, toolchain doctoring, and CHANGELOG. #301 has been converted to Draft rather than closed; its valid Dependabot delta remains preserved until the successor is fully verified/integrated. #308 is also Draft because protected workflow-owned paths still materialize stable 1.97.1; that control-plane provenance split must be repaired through the authorized workflow owner before exact-head promotion. No .github/** change was copied into the product/docs repair.

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