CI: install ARMv7 Rust toolchains into a fresh rustup home - #458
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alex
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…up home
Since Rust 1.99.0 (2026-10-01), `rustup toolchain install stable` fails in
pyca's runner images: updating the image's preinstalled toolchain removes
its previous components, and the image's installation lacks files their
manifests list ("failure removing component 'cargo-...', directory does not
exist: 'share/man/man1/cargo.1'"). The ARMv7 job on main fails the same
way; #458 fixes it by pointing RUSTUP_HOME at a fresh directory, so that
the toolchain is installed rather than upgraded. Do the same for the ppc64le
platform (and its 1.88 exclusion, which must match it), and carry #458's
ARMv7 change so that this PR's CI is green whichever lands first.
Refs #55
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Fw6RULWHCeVgMDGc3wRrwE
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alex
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The Thumb job (new on main) runs in the same ARMv7 image, and fails to upgrade its preinstalled stable toolchain to 1.99.0 in the same way; #458 gives it a fresh RUSTUP_HOME too. Carry that change here as well, so this PR's CI is green whichever lands first. Refs #55 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Fw6RULWHCeVgMDGc3wRrwE
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This isn't the right fix but it will unblock us while we wait for the ppc64le runners to actually work on pyca/infra#798 |
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The ARMv7 and Thumb stable jobs fail during Rust installation when stable advances. The image's preinstalled Cargo component manifest refers to
share/man/man1/cargo.1, which is absent, so rustup aborts while removing the old component. ARMv7 failure and Thumb failure both occur before compiling repository code.Give both ARMv7 containers a fresh
RUSTUP_HOMEunder/tmp. Rustup installs the selected toolchain from scratch and continues to use the existingRUSTUP_TOOLCHAINselection for stable and 1.88. Rustup documentsRUSTUP_HOMEas the root for installed toolchains and configuration.Validation: workflow YAML parses and both ARM container definitions select the fresh directory; full Lean build and emitter check, repository checks, Rust formatting/clippy and normal/baseline Wycheproof suites pass. This PR's ARMv7 and Thumb CI jobs pass with both stable and 1.88, including installation, lint and tests.