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First real CI run after enabling Actions went 14/19 red. Root cause, run
down rather than guessed: the docker-executor runners (linux, linux-arm64,
windows) use `catthehacker/ubuntu:act-22.04`, which carries node/curl/git
but no Rust — `docker run … which cargo rustc rustup` returns nothing. The
`macos` runner is a *host* executor on the dev box where cargo exists,
which is exactly why the same `cargo-class corpora` job was green on macos
and red on every other arch.
Both Rust-setup styles in the repo assumed a compiler was already present:
- raw `rustup toolchain install …` (wai-conformance, wai-neural-e2e)
- `dtolnay/rust-toolchain` (wai-byte-equality, jouleclaw-public-surface,
joule-code-conformance) — which is *not* a fix here: the action itself
shells out to `rustup`, so it fails identically on an image without it.
wai-byte-equality already used dtolnay and failed the same way; that is
what ruled the action out.
Every Rust job now bootstraps rustup itself, which works on both executor
kinds: on the docker image it installs via rustup-init; on the macOS host
it finds the existing rustup once ~/.cargo/bin is on PATH (launchd's PATH
omits it). Proven in the actual runner image before writing it —
`docker run catthehacker/ubuntu:act-22.04` + rustup-init installed 1.97.1
and compiled a binary clean.
Scope: this fixes the *toolchain* step for all six Rust jobs. Jobs with
further environment needs (wai-neural-e2e pulls a CPU torch + onnxruntime
stack) may surface their own next failure — that is the following layer,
not this one. The PR's own CI run is the verification.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
65 lines
2.7 KiB
YAML
65 lines
2.7 KiB
YAML
name: wai cross-architecture byte-equality
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# The `replicate` determinism contract, checked on real silicon. WAI claims its
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# integer-exact decode paths (rANS entropy coder, integer fixed-point synthesis)
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# produce BYTE-IDENTICAL output on every machine. This matrix proves it: five
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# OS/arch combinations decode the same fixtures and assert the same golden
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# bytes — rANS streams produced by CompressAI's upstream encoder, and an
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# int_synth output hash produced on the reference machine (macOS arm64). One
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# diverging byte anywhere fails the suite.
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#
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# The conformance crate (`wai/byte-exact-conformance`) #[path]-includes the
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# pure-integer sources from wai-rs — no system codec libraries, no ONNX runtime
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# — so every leg runs in about a minute.
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on:
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pull_request:
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paths:
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- 'wai/byte-exact-conformance/**'
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- 'wai/wai-rs/src/neural/int_synth.rs'
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- 'wai/wai-rs/src/neural/jpegai_mans.rs'
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- '.github/workflows/wai-byte-equality.yml'
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push:
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branches:
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- main
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paths:
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- 'wai/byte-exact-conformance/**'
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- 'wai/wai-rs/src/neural/int_synth.rs'
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- 'wai/wai-rs/src/neural/jpegai_mans.rs'
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- '.github/workflows/wai-byte-equality.yml'
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jobs:
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byte-equality:
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name: ${{ matrix.label }}
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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# Self-hosted fleet labels, not GitHub-hosted images. macos-x86_64 is
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# dropped: no Intel-Mac runner exists in the fleet, and by the same
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# argument the cargo-classes matrix already makes, it adds no arch
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# coverage — x86_64 is held by linux-x86_64 and windows-x86_64, arm64
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# by linux-aarch64 and the macos-arm64 reference.
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include:
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- { os: linux, label: linux-x86_64 }
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- { os: linux-arm64, label: linux-aarch64 }
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- { os: macos, label: macos-arm64 (reference) }
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- { os: windows, label: windows-x86_64 }
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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# Bootstrap rustup: the docker runner image ships no Rust, and
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# dtolnay/rust-toolchain cannot help — it calls `rustup`, which is absent.
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- name: Install Rust 1.97.1
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run: |
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export PATH="$HOME/.cargo/bin:$PATH"
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command -v rustup >/dev/null 2>&1 || \
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curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal --default-toolchain 1.97.1
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rustup toolchain install 1.97.1 --profile minimal
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rustup default 1.97.1
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echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
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- name: Decode fixtures, assert golden bytes
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working-directory: wai/byte-exact-conformance
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run: cargo test --release -- --nocapture
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