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underspecification of <name> and case-conversion

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

A-environment-variablesArea: environment variablesArea: environment variables

C-bugCategory: bugCategory: bug

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

Status: Open.

#16532 In rust-lang/cargo;

· pnkfelix opened on Jan 20, 2026

Unexpected build failure with <code>feature-unification = "package"</code> mode

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.

Z-feature-unificationNightly: resolver.feature-unifiicationNightly: resolver.feature-unifiication

Status: Open.

#16529 In rust-lang/cargo;

· AMDmi3 opened on Jan 19, 2026

<code>cargo::rustc-link-arg-cdylib</code> should not be rejected if <code>cdylib</code> is not in <code>crate-type</code>

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

A-crate-typesArea: crate-type declaration (lib, staticlib, dylib, cdylib, etc.)Area: crate-type declaration (lib, staticlib, dylib, cdylib, etc.)

C-bugCategory: bugCategory: bug

Command-rustc

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

Status: Open.

#16487 In rust-lang/cargo;

· usamoi opened on Jan 8, 2026

<code>cargo package</code> doesn't properly handle unreadable directories in the root

C-bugCategory: bugCategory: bug

Command-package

Command-publish

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

Status: Open.

#16465 In rust-lang/cargo;

· konstin opened on Jan 4, 2026

Goofy error if I forgot to put quotes around immediate-abort

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

A-tomlArea: TOML parsing and handlingArea: TOML parsing and handling

C-bugCategory: bugCategory: bug

S-blocked-externalStatus: ❌ blocked on something out of the direct control of the Cargo project, e.g., upstream fixStatus: ❌ blocked on something out of the direct control of the Cargo project, e.g., upstream fix

Status: Open.

#16449 In rust-lang/cargo;

· saethlin opened on Dec 30, 2025

During dependency resolution cargo claims feature does not exist when a different feature is misspelled

A-dependency-resolutionArea: dependency resolution and the resolverArea: dependency resolution and the resolver

A-featuresArea: features — conditional compilationArea: features — conditional compilation

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.

#16393 In rust-lang/cargo;

· paolobarbolini opened on Dec 14, 2025

"SSL peer certificate or SSH remote key was not OK" error with latest nightly cargo on FreeBSD

A-networkingArea: networking issues, curl, etc.Area: networking issues, curl, etc.

C-bugCategory: bugCategory: bug

O-freebsdOS: FreeBSDOS: FreeBSD

regression-from-stable-to-betaRegression in beta that previously worked in stable.Regression in beta that previously worked in stable.

S-blocked-externalStatus: ❌ blocked on something out of the direct control of the Cargo project, e.g., upstream fixStatus: ❌ blocked on something out of the direct control of the Cargo project, e.g., upstream fix

Status: Open.

#16357 In rust-lang/cargo;

· asomers opened on Dec 7, 2025

dylib dependency of proc-macro causes build to fail with opaque error message

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

C-bugCategory: bugCategory: bug

Status: Open.

#16356 In rust-lang/cargo;

· gmorenz opened on Dec 6, 2025

Spurious network error 503 on updating crates.io index behind proxy since 1.89.0

A-networkingArea: networking issues, curl, etc.Area: networking issues, curl, etc.

C-bugCategory: bugCategory: bug

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

Status: Open.

#16319 In rust-lang/cargo;

· michaelvlach opened on Dec 1, 2025

<code>cargo rustdoc --output-format=json</code> sometimes doesn't rebuild for different versions of same crate name.

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

C-bugCategory: bugCategory: bug

Command-rustdoc

S-needs-mentorStatus: Issue or feature is accepted, but needs a team member to commit to helping and reviewing.Status: Issue or feature is accepted, but needs a team member to commit to helping and reviewing.

Status: Open.

#16291 In rust-lang/cargo;

· aDotInTheVoid opened on Nov 22, 2025

Incorrect version resolving with git dependencies

A-patchArea: [patch] table overrideArea: [patch] table override

C-bugCategory: bugCategory: bug

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

Status: Open.

#16269 In rust-lang/cargo;

· Ddystopia opened on Nov 17, 2025

cargo publish --index bypasses package.publish restrictions

A-edition-nextArea: may require a breaking change over an editionArea: may require a breaking change over an edition

C-bugCategory: bugCategory: bug

Command-publish

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.

#16231 In rust-lang/cargo;

· AryzXploit opened on Nov 9, 2025