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RUST CI BREAKS ON KERNEL.ORG OUTAGE, MIRRORING FIX LANDS
By RepoJournal · Filed · About Rust
The ARM cross-compilation pipeline went dark when kernel.org became unreachable, but the infrastructure team has already pushed the mirror strategy live.
Rust's CI infrastructure hit a critical wall overnight when armhf-gnu builds started failing due to direct dependencies on kernel.org archives [1]. The outage exposed a fragile supply chain: CI was pulling kernel v4.x artifacts from a single source with no fallback. The fix is already merged [2], mirroring kernel archives into ci-mirrors to break the direct dependency and add resilience. Cargo also got a routine submodule bump [3] with 13 commits including a fix for `Compilation::deps_output` only capturing the last dependency. On the libc front, the team shipped tooling to unblock the release cycle: a changelog generator [4], a backport relabeling utility [5], and a multi-target build checker [6] that lets contributors verify builds across all relevant platforms in one command. rust-analyzer landed diagnostics for invalid union patterns [7], catching the E0784 case when patterns contain multiple fields or the rest operator, and fixed SCIP position tracking to exclude trivia so IDE navigation stays precise [8]. The vanta SDK suite got bumped across all packages [9] [10] [11] [12] [13] without incident.
Action items
- → Monitor next CI run on armhf-gnu to confirm kernel mirror fallback works rust-lang/rust [immediate]
- → Pull latest cargo submodule with deps_output fix if you run custom build systems rust-lang/rust [plan]
- → Review libc's new multi-target test script if maintaining platform support rust-lang/libc [monitor]
References
- [1] Mirror kernel archives in `ci-mirrors` to not depend on currently unavailable kernel mirror sources ↗ rust-lang/rust
- [2] Auto merge of #158774 - jieyouxu:jieyouxu/ci/mirror, r=Mark-Simulacrum rust-lang/rust
- [3] Auto merge of #158691 - weihanglo:update-cargo, r=weihanglo rust-lang/rust
- [4] meta: Add a util command to prepare the changelog ↗ rust-lang/libc
- [5] meta: Add a command to relabel PRs after backports ↗ rust-lang/libc
- [6] meta: Add a script for running checks on multiple targets ↗ rust-lang/libc
- [7] feat(ide-diagnostics): add diagnostics for invalid union patterns (E0784) ↗ rust-lang/rust-analyzer
- [8] SCIP: Exclude leading/trailing trivia in definition ranges ↗ rust-lang/rust-analyzer
- [9] Update crate `vanta-security` rust-lang/crates.io-index
- [10] Update crate `vanta-resolve` rust-lang/crates.io-index
- [11] Update crate `vanta-sdk` rust-lang/crates.io-index
- [12] Update crate `vanta-platform` rust-lang/crates.io-index
- [13] Update crate `vanta` rust-lang/crates.io-index
FAQ
- What changed in Rust on July 5, 2026?
- The ARM cross-compilation pipeline went dark when kernel.org became unreachable, but the infrastructure team has already pushed the mirror strategy live.
- What should Rust teams do about it?
- Monitor next CI run on armhf-gnu to confirm kernel mirror fallback works • Pull latest cargo submodule with deps_output fix if you run custom build systems • Review libc's new multi-target test script if maintaining platform support
- Which Rust repositories shipped on July 5, 2026?
- rust-lang/rust, rust-lang/libc, rust-lang/rust-analyzer, rust-lang/crates.io-index