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Do not lock the artifact-dir for check builds

A-build-executionArea: anything dealing with executing the compilerArea: anything dealing with executing the compiler

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

A-cfg-exprArea: Platform cfg expressionsArea: Platform cfg expressions

A-layoutArea: target output directory layout, naming, and organizationArea: target output directory layout, naming, and organization

A-timingsArea: timingsArea: timings

Command-clean

S-waiting-on-reviewStatus: Awaiting review from the assignee but also interested parties.Status: Awaiting review from the assignee but also interested parties.

Status: Open (in progress).

rust-lang/cargonumber 16230

#16230 In rust-lang/cargo;

· ranger-ross opened on Nov 8, 2025

When build fails, print dependency graph path leading to failure

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

A-diagnosticsArea: Error and warning messages generated by Cargo itself.Area: Error and warning messages generated by Cargo itself.

C-feature-requestCategory: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`Category: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`

Command-tree

S-needs-designStatus: Needs someone to work further on the design for the feature or fix. NOT YET accepted.Status: Needs someone to work further on the design for the feature or fix. NOT YET accepted.

Status: Open.

#16196 In rust-lang/cargo;

· stepancheg opened on Nov 2, 2025

Allow specifying build dependencies <code>opt-level</code> with <code>[project.dev.build-override.package]</code>

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

A-profilesArea: profilesArea: profiles

C-feature-requestCategory: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`Category: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`

S-needs-designStatus: Needs someone to work further on the design for the feature or fix. NOT YET accepted.Status: Needs someone to work further on the design for the feature or fix. NOT YET accepted.

Status: Open.

#16193 In rust-lang/cargo;

· mkurnikov opened on Nov 2, 2025

Enable CARGO_CFG_DEBUG_ASSERTIONS in build scripts based on profile

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

A-documenting-cargo-itselfArea: Cargo's documentationArea: Cargo's documentation

A-infrastructureArea: infrastructure around the cargo repo, ci, releases, etc.Area: infrastructure around the cargo repo, ci, releases, etc.

A-profilesArea: profilesArea: profiles

disposition-mergeFCP with intent to mergeFCP with intent to merge

final-comment-periodFCP — a period for last comments before action is takenFCP — a period for last comments before action is taken

S-waiting-on-reviewStatus: Awaiting review from the assignee but also interested parties.Status: Awaiting review from the assignee but also interested parties.

T-cargoTeam: CargoTeam: Cargo

Status: Open (in progress).

rust-lang/cargonumber 16160

#16160 In rust-lang/cargo;

· moabo3li opened on Oct 27, 2025

Spurious rebuilds of ring: the env variable CARGO_MANIFEST_DIR changed

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

A-rebuild-detectionArea: rebuild detection and fingerprintingArea: rebuild detection and fingerprinting

C-bugCategory: bugCategory: bug

S-needs-infoStatus: Needs more info, such as a reproduction or more background for a feature request.Status: Needs more info, such as a reproduction or more background for a feature request.

Status: Open.

#16134 In rust-lang/cargo;

· kryptan opened on Oct 20, 2025

Build script: Adding directive cargo::no-new-rust-code to speed up compilation

A-build-executionArea: anything dealing with executing the compilerArea: anything dealing with executing the compiler

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

C-feature-requestCategory: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`Category: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`

PerformanceGotta go fast!Gotta go fast!

S-needs-designStatus: Needs someone to work further on the design for the feature or fix. NOT YET accepted.Status: Needs someone to work further on the design for the feature or fix. NOT YET accepted.

Status: Open.

#16062 In rust-lang/cargo;

· NobodyXu opened on Oct 7, 2025

Build scripts can report arbitrary content through ANSI escape codes / CR

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

C-bugCategory: bugCategory: bug

S-needs-designStatus: Needs someone to work further on the design for the feature or fix. NOT YET accepted.Status: Needs someone to work further on the design for the feature or fix. NOT YET accepted.

Status: Open.

#15829 In rust-lang/cargo;

· epage opened on Aug 12, 2025

docs: clarify that <code>cargo:rustc-link-arg-tests</code> only applies to integration tests

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

A-documenting-cargo-itselfArea: Cargo's documentationArea: Cargo's documentation

S-waiting-on-reviewStatus: Awaiting review from the assignee but also interested parties.Status: Awaiting review from the assignee but also interested parties.

Status: Open (in progress).

rust-lang/cargonumber 15814

#15814 In rust-lang/cargo;

· t-moe opened on Aug 7, 2025

Presentation of build script errors is still noisy, difficult to understand

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

C-bugCategory: bugCategory: bug

S-triageStatus: This issue is waiting on initial triage.Status: This issue is waiting on initial triage.

Status: Open.

#15792 In rust-lang/cargo;

· kornelski opened on Jul 31, 2025

Allow build scripts to detect <code>debug_assertions</code> setting

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

C-feature-requestCategory: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`Category: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`

S-acceptedStatus: Issue or feature is accepted, and has a team member available to help mentor or reviewStatus: Issue or feature is accepted, and has a team member available to help mentor or review

Status: Open.

#15760 In rust-lang/cargo;

· Patrick-6 opened on Jul 21, 2025

idea on how to get sandboxed build-scripts

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

C-feature-requestCategory: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`Category: proposal for a feature. Before PR, ping rust-lang/cargo if this is not `Feature accepted`

S-needs-team-inputStatus: Needs input from team on whether/how to proceed.Status: Needs input from team on whether/how to proceed.

Status: Open.

#15672 In rust-lang/cargo;

· boozook opened on Jun 16, 2025

Rewrite build script documentation in terms of build-rs

A-build-scriptsArea: build.rs scriptsArea: build.rs scripts

A-documenting-cargo-itselfArea: Cargo's documentationArea: Cargo's documentation

Status: Open.

#15567 In rust-lang/cargo;

· Xaeroxe opened on May 20, 2025