ci: architecture-neutral jobs run on linux-arm64, balancing the two Linux pools #265
2026-10-15
ci: architecture-neutral jobs run on linux-arm64, balancing the two Linux pools
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On 2026-10-15 the one x86_64 runner (linux, two slots) had about 104 jobs queued while the linux-arm64 runner on the build host sat idle. Thirteen of the jobs pinned to linux need nothing x86_64: every tool they use comes through rustup, pip, apt, npm or cargo install, which pick the host's architecture, and nothing they check depends on it. They now run on linux-arm64: - wai-http: its path gate, the falsify shards, the shard-coverage check, the corpus verified both ways with its differential, and the cache rules; - wai-pack: its path gate, the independent verifier, the floor through a media prober (ffmpeg from apt) and the dependency licences (cargo-deny); - wai-conformance: the v2 vocabulary, the independent verifiers, delivery telemetry against an independent library, and C2PA emission. The wasm32-wasip2 quantum job stays on linux: it pins an x86_64 wasmtime archive and refuses any other host. The Kani shard stays too. Byte-equality and cross-architecture legs keep both labels, as before. The three workflows parse; the concurrency check passes. This change runs them in full, on their new runner, before it merges. Co-Authored-By: Claude Opus 5.5 <[email protected]>