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refactor: Remove unnecessary mut in sources - #17305

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weihanglo merged 1 commit into
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adamgemmell:dev/adagem01/unnecessary-mut
Aug 4, 2026
Merged

refactor: Remove unnecessary mut in sources#17305
weihanglo merged 1 commit into
rust-lang:masterfrom
adamgemmell:dev/adagem01/unnecessary-mut

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@adamgemmell

@adamgemmell adamgemmell commented Aug 4, 2026

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What does this PR try to resolve?

This PR is split out from a WIP PR - I found that many of the methods in src/sources/ take a mutable reference, which is unnecessary as they often use interior mutability.

How to test and review this PR?

There should be no behavioural changes with this PR, and the normal test suite is enough to verify that it's safe.

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rustbot commented Aug 4, 2026

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r? @weihanglo

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The reviewer was selected based on:

  • Owners of files modified in this PR: @epage, @weihanglo
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@rustbot rustbot added A-dependency-resolution Area: dependency resolution and the resolver A-directory-source Area: directory sources (vendoring) A-git Area: anything dealing with git Command-add Command-package S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 4, 2026

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@weihanglo
weihanglo added this pull request to the merge queue Aug 4, 2026
Merged via the queue into rust-lang:master with commit 2d4a6dc Aug 4, 2026
29 checks passed
@rustbot rustbot removed the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 4, 2026
rust-bors Bot pushed a commit to rust-lang/rust that referenced this pull request Aug 5, 2026
Update cargo submodule

21 commits in 7c83d4cc0953b81d823e47d640c64da9b8bd4fac..c79e8f89441b3e73d6d65d125c0c745792808c74
2026-07-29 21:34:53 +0000 to 2026-08-04 19:17:33 +0000
- fix(diag): Ensure diagnostic titles work without snippets (rust-lang/cargo#17304)
- refactor: Remove unnecessary mut in sources (rust-lang/cargo#17305)
- feat(trim-paths): emit unremap files for final artifacts (rust-lang/cargo#17303)
- fix: prevent panic when `package.build` is empty (rust-lang/cargo#17268)
- Add a suggestion when adding `[lints]` to a workspace to use `[workspace.lints]` instead (rust-lang/cargo#17300)
- chore(deps): update embarkstudios/cargo-deny-action action to v2.1.1 (rust-lang/cargo#17291)
- refactor: move sysroot lookup to GlobalContext (rust-lang/cargo#17276)
- fix(trim-paths): unambiguous and reversible remap rules (rust-lang/cargo#17302)
- Avoid parsing unchanged lockfiles (rust-lang/cargo#17301)
- Remove unnecessary to_path_buf (rust-lang/cargo#17295)
- chore(deps): update cargo-semver-checks to v0.50.0 (rust-lang/cargo#17297)
- chore(deps): update actions/checkout action to v6.1.0 (rust-lang/cargo#17290)
- Remove unnecessary return at end of functions (rust-lang/cargo#17292)
- make __CARGO_TEST_FORCE_ARGFILE available in distributed builds (rust-lang/cargo#17293)
- Fix manual_readme lint for lower-priority README files (rust-lang/cargo#17208)
- fix(git): make checkout names independent of git config (rust-lang/cargo#17289)
- fix(diag): Rename redundant_readme to manual_readme (rust-lang/cargo#17288)
- Remove redundant double call .to_string() (rust-lang/cargo#17286)
- fix(completions): complete paths for cargo run arguments (rust-lang/cargo#17284)
- test(git): exercise multi git revision lockfile (rust-lang/cargo#17279)
- add context to lints documentation (rust-lang/cargo#17273)

r? ghost
@adamgemmell
adamgemmell deleted the dev/adagem01/unnecessary-mut branch August 5, 2026 13:19
rust-bors Bot pushed a commit to rust-lang/rust that referenced this pull request Aug 6, 2026
Update cargo submodule



21 commits in 7c83d4cc0953b81d823e47d640c64da9b8bd4fac..c79e8f89441b3e73d6d65d125c0c745792808c74
2026-07-29 21:34:53 +0000 to 2026-08-04 19:17:33 +0000
- fix(diag): Ensure diagnostic titles work without snippets (rust-lang/cargo#17304)
- refactor: Remove unnecessary mut in sources (rust-lang/cargo#17305)
- feat(trim-paths): emit unremap files for final artifacts (rust-lang/cargo#17303)
- fix: prevent panic when `package.build` is empty (rust-lang/cargo#17268)
- Add a suggestion when adding `[lints]` to a workspace to use `[workspace.lints]` instead (rust-lang/cargo#17300)
- chore(deps): update embarkstudios/cargo-deny-action action to v2.1.1 (rust-lang/cargo#17291)
- refactor: move sysroot lookup to GlobalContext (rust-lang/cargo#17276)
- fix(trim-paths): unambiguous and reversible remap rules (rust-lang/cargo#17302)
- Avoid parsing unchanged lockfiles (rust-lang/cargo#17301)
- Remove unnecessary to_path_buf (rust-lang/cargo#17295)
- chore(deps): update cargo-semver-checks to v0.50.0 (rust-lang/cargo#17297)
- chore(deps): update actions/checkout action to v6.1.0 (rust-lang/cargo#17290)
- Remove unnecessary return at end of functions (rust-lang/cargo#17292)
- make __CARGO_TEST_FORCE_ARGFILE available in distributed builds (rust-lang/cargo#17293)
- Fix manual_readme lint for lower-priority README files (rust-lang/cargo#17208)
- fix(git): make checkout names independent of git config (rust-lang/cargo#17289)
- fix(diag): Rename redundant_readme to manual_readme (rust-lang/cargo#17288)
- Remove redundant double call .to_string() (rust-lang/cargo#17286)
- fix(completions): complete paths for cargo run arguments (rust-lang/cargo#17284)
- test(git): exercise multi git revision lockfile (rust-lang/cargo#17279)
- add context to lints documentation (rust-lang/cargo#17273)

r? ghost
@rustbot rustbot added this to the 1.99.0 milestone Aug 6, 2026
pull Bot pushed a commit to LeeeeeeM/miri that referenced this pull request Aug 8, 2026
Update cargo submodule



21 commits in 7c83d4cc0953b81d823e47d640c64da9b8bd4fac..c79e8f89441b3e73d6d65d125c0c745792808c74
2026-07-29 21:34:53 +0000 to 2026-08-04 19:17:33 +0000
- fix(diag): Ensure diagnostic titles work without snippets (rust-lang/cargo#17304)
- refactor: Remove unnecessary mut in sources (rust-lang/cargo#17305)
- feat(trim-paths): emit unremap files for final artifacts (rust-lang/cargo#17303)
- fix: prevent panic when `package.build` is empty (rust-lang/cargo#17268)
- Add a suggestion when adding `[lints]` to a workspace to use `[workspace.lints]` instead (rust-lang/cargo#17300)
- chore(deps): update embarkstudios/cargo-deny-action action to v2.1.1 (rust-lang/cargo#17291)
- refactor: move sysroot lookup to GlobalContext (rust-lang/cargo#17276)
- fix(trim-paths): unambiguous and reversible remap rules (rust-lang/cargo#17302)
- Avoid parsing unchanged lockfiles (rust-lang/cargo#17301)
- Remove unnecessary to_path_buf (rust-lang/cargo#17295)
- chore(deps): update cargo-semver-checks to v0.50.0 (rust-lang/cargo#17297)
- chore(deps): update actions/checkout action to v6.1.0 (rust-lang/cargo#17290)
- Remove unnecessary return at end of functions (rust-lang/cargo#17292)
- make __CARGO_TEST_FORCE_ARGFILE available in distributed builds (rust-lang/cargo#17293)
- Fix manual_readme lint for lower-priority README files (rust-lang/cargo#17208)
- fix(git): make checkout names independent of git config (rust-lang/cargo#17289)
- fix(diag): Rename redundant_readme to manual_readme (rust-lang/cargo#17288)
- Remove redundant double call .to_string() (rust-lang/cargo#17286)
- fix(completions): complete paths for cargo run arguments (rust-lang/cargo#17284)
- test(git): exercise multi git revision lockfile (rust-lang/cargo#17279)
- add context to lints documentation (rust-lang/cargo#17273)

r? ghost
github-actions Bot pushed a commit to rust-lang/stdarch that referenced this pull request Aug 10, 2026
Update cargo submodule



21 commits in 7c83d4cc0953b81d823e47d640c64da9b8bd4fac..c79e8f89441b3e73d6d65d125c0c745792808c74
2026-07-29 21:34:53 +0000 to 2026-08-04 19:17:33 +0000
- fix(diag): Ensure diagnostic titles work without snippets (rust-lang/cargo#17304)
- refactor: Remove unnecessary mut in sources (rust-lang/cargo#17305)
- feat(trim-paths): emit unremap files for final artifacts (rust-lang/cargo#17303)
- fix: prevent panic when `package.build` is empty (rust-lang/cargo#17268)
- Add a suggestion when adding `[lints]` to a workspace to use `[workspace.lints]` instead (rust-lang/cargo#17300)
- chore(deps): update embarkstudios/cargo-deny-action action to v2.1.1 (rust-lang/cargo#17291)
- refactor: move sysroot lookup to GlobalContext (rust-lang/cargo#17276)
- fix(trim-paths): unambiguous and reversible remap rules (rust-lang/cargo#17302)
- Avoid parsing unchanged lockfiles (rust-lang/cargo#17301)
- Remove unnecessary to_path_buf (rust-lang/cargo#17295)
- chore(deps): update cargo-semver-checks to v0.50.0 (rust-lang/cargo#17297)
- chore(deps): update actions/checkout action to v6.1.0 (rust-lang/cargo#17290)
- Remove unnecessary return at end of functions (rust-lang/cargo#17292)
- make __CARGO_TEST_FORCE_ARGFILE available in distributed builds (rust-lang/cargo#17293)
- Fix manual_readme lint for lower-priority README files (rust-lang/cargo#17208)
- fix(git): make checkout names independent of git config (rust-lang/cargo#17289)
- fix(diag): Rename redundant_readme to manual_readme (rust-lang/cargo#17288)
- Remove redundant double call .to_string() (rust-lang/cargo#17286)
- fix(completions): complete paths for cargo run arguments (rust-lang/cargo#17284)
- test(git): exercise multi git revision lockfile (rust-lang/cargo#17279)
- add context to lints documentation (rust-lang/cargo#17273)

r? ghost
github-actions Bot pushed a commit to rust-lang/rustc-dev-guide that referenced this pull request Aug 10, 2026
Update cargo submodule



21 commits in 7c83d4cc0953b81d823e47d640c64da9b8bd4fac..c79e8f89441b3e73d6d65d125c0c745792808c74
2026-07-29 21:34:53 +0000 to 2026-08-04 19:17:33 +0000
- fix(diag): Ensure diagnostic titles work without snippets (rust-lang/cargo#17304)
- refactor: Remove unnecessary mut in sources (rust-lang/cargo#17305)
- feat(trim-paths): emit unremap files for final artifacts (rust-lang/cargo#17303)
- fix: prevent panic when `package.build` is empty (rust-lang/cargo#17268)
- Add a suggestion when adding `[lints]` to a workspace to use `[workspace.lints]` instead (rust-lang/cargo#17300)
- chore(deps): update embarkstudios/cargo-deny-action action to v2.1.1 (rust-lang/cargo#17291)
- refactor: move sysroot lookup to GlobalContext (rust-lang/cargo#17276)
- fix(trim-paths): unambiguous and reversible remap rules (rust-lang/cargo#17302)
- Avoid parsing unchanged lockfiles (rust-lang/cargo#17301)
- Remove unnecessary to_path_buf (rust-lang/cargo#17295)
- chore(deps): update cargo-semver-checks to v0.50.0 (rust-lang/cargo#17297)
- chore(deps): update actions/checkout action to v6.1.0 (rust-lang/cargo#17290)
- Remove unnecessary return at end of functions (rust-lang/cargo#17292)
- make __CARGO_TEST_FORCE_ARGFILE available in distributed builds (rust-lang/cargo#17293)
- Fix manual_readme lint for lower-priority README files (rust-lang/cargo#17208)
- fix(git): make checkout names independent of git config (rust-lang/cargo#17289)
- fix(diag): Rename redundant_readme to manual_readme (rust-lang/cargo#17288)
- Remove redundant double call .to_string() (rust-lang/cargo#17286)
- fix(completions): complete paths for cargo run arguments (rust-lang/cargo#17284)
- test(git): exercise multi git revision lockfile (rust-lang/cargo#17279)
- add context to lints documentation (rust-lang/cargo#17273)

r? ghost
renovate-bot pushed a commit to renovate-bot/rust-lang-_-compiler-builtins that referenced this pull request Aug 17, 2026
Update cargo submodule



21 commits in 7c83d4cc0953b81d823e47d640c64da9b8bd4fac..c79e8f89441b3e73d6d65d125c0c745792808c74
2026-07-29 21:34:53 +0000 to 2026-08-04 19:17:33 +0000
- fix(diag): Ensure diagnostic titles work without snippets (rust-lang/cargo#17304)
- refactor: Remove unnecessary mut in sources (rust-lang/cargo#17305)
- feat(trim-paths): emit unremap files for final artifacts (rust-lang/cargo#17303)
- fix: prevent panic when `package.build` is empty (rust-lang/cargo#17268)
- Add a suggestion when adding `[lints]` to a workspace to use `[workspace.lints]` instead (rust-lang/cargo#17300)
- chore(deps): update embarkstudios/cargo-deny-action action to v2.1.1 (rust-lang/cargo#17291)
- refactor: move sysroot lookup to GlobalContext (rust-lang/cargo#17276)
- fix(trim-paths): unambiguous and reversible remap rules (rust-lang/cargo#17302)
- Avoid parsing unchanged lockfiles (rust-lang/cargo#17301)
- Remove unnecessary to_path_buf (rust-lang/cargo#17295)
- chore(deps): update cargo-semver-checks to v0.50.0 (rust-lang/cargo#17297)
- chore(deps): update actions/checkout action to v6.1.0 (rust-lang/cargo#17290)
- Remove unnecessary return at end of functions (rust-lang/cargo#17292)
- make __CARGO_TEST_FORCE_ARGFILE available in distributed builds (rust-lang/cargo#17293)
- Fix manual_readme lint for lower-priority README files (rust-lang/cargo#17208)
- fix(git): make checkout names independent of git config (rust-lang/cargo#17289)
- fix(diag): Rename redundant_readme to manual_readme (rust-lang/cargo#17288)
- Remove redundant double call .to_string() (rust-lang/cargo#17286)
- fix(completions): complete paths for cargo run arguments (rust-lang/cargo#17284)
- test(git): exercise multi git revision lockfile (rust-lang/cargo#17279)
- add context to lints documentation (rust-lang/cargo#17273)

r? ghost
lnicola pushed a commit to lnicola/rust-analyzer that referenced this pull request Aug 17, 2026
Update cargo submodule



21 commits in 7c83d4cc0953b81d823e47d640c64da9b8bd4fac..c79e8f89441b3e73d6d65d125c0c745792808c74
2026-07-29 21:34:53 +0000 to 2026-08-04 19:17:33 +0000
- fix(diag): Ensure diagnostic titles work without snippets (rust-lang/cargo#17304)
- refactor: Remove unnecessary mut in sources (rust-lang/cargo#17305)
- feat(trim-paths): emit unremap files for final artifacts (rust-lang/cargo#17303)
- fix: prevent panic when `package.build` is empty (rust-lang/cargo#17268)
- Add a suggestion when adding `[lints]` to a workspace to use `[workspace.lints]` instead (rust-lang/cargo#17300)
- chore(deps): update embarkstudios/cargo-deny-action action to v2.1.1 (rust-lang/cargo#17291)
- refactor: move sysroot lookup to GlobalContext (rust-lang/cargo#17276)
- fix(trim-paths): unambiguous and reversible remap rules (rust-lang/cargo#17302)
- Avoid parsing unchanged lockfiles (rust-lang/cargo#17301)
- Remove unnecessary to_path_buf (rust-lang/cargo#17295)
- chore(deps): update cargo-semver-checks to v0.50.0 (rust-lang/cargo#17297)
- chore(deps): update actions/checkout action to v6.1.0 (rust-lang/cargo#17290)
- Remove unnecessary return at end of functions (rust-lang/cargo#17292)
- make __CARGO_TEST_FORCE_ARGFILE available in distributed builds (rust-lang/cargo#17293)
- Fix manual_readme lint for lower-priority README files (rust-lang/cargo#17208)
- fix(git): make checkout names independent of git config (rust-lang/cargo#17289)
- fix(diag): Rename redundant_readme to manual_readme (rust-lang/cargo#17288)
- Remove redundant double call .to_string() (rust-lang/cargo#17286)
- fix(completions): complete paths for cargo run arguments (rust-lang/cargo#17284)
- test(git): exercise multi git revision lockfile (rust-lang/cargo#17279)
- add context to lints documentation (rust-lang/cargo#17273)

r? ghost
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3 participants