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fuzzing.yml: use prebuilt cargo-fuzz for faster CI #297

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fuzzing.yml: use prebuilt cargo-fuzz for faster CI #297

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15 changes: 9 additions & 6 deletions .github/workflows/fuzzing.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -26,14 +26,16 @@ jobs:
steps:
- uses: actions/checkout@v7
- name: Install `cargo-fuzz`
run: |
cargo install cargo-fuzz --locked
uses: taiki-e/install-action@v2
with:
tool: cargo-fuzz
- uses: Swatinem/rust-cache@v2
with:
shared-key: "cargo-fuzz-cache-key"
cache-directories: "fuzz/target"
- name: Run `cargo-fuzz build`
run: cargo fuzz build
# https://github.com/rust-fuzz/cargo-fuzz/issues/398
run: cargo fuzz build --target host-tuple

fuzz-run:
needs: fuzz-build
Expand All @@ -54,8 +56,9 @@ jobs:
steps:
- uses: actions/checkout@v7
- name: Install `cargo-fuzz`
run: |
cargo install cargo-fuzz --locked
uses: taiki-e/install-action@v2
with:
tool: cargo-fuzz
- uses: Swatinem/rust-cache@v2
with:
shared-key: "cargo-fuzz-cache-key"
Expand All @@ -70,7 +73,7 @@ jobs:
shell: bash
continue-on-error: ${{ !matrix.test-target.should_pass }}
run: |
cargo fuzz run ${{ matrix.test-target.name }} -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
cargo fuzz run --target host-tuple ${{ matrix.test-target.name }} -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0

@sylvestre sylvestre Oct 4, 2026

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does cargo fuzz run find the binary with host-tuple?
i think it builds the path as fuzz/target//release/..., so it would look in fuzz/target/host-tuple/
we only run on ubuntu-latest, could you please just use x86_64-unknown-linux-gnu?

@oech3 oech3 Oct 4, 2026

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host-tuple is same with x86_64-unknown-linux-gnu. No?

@oech3 oech3 Oct 4, 2026

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fuzz/target/host-tuple/

It is confusing with --profile=profile-name

- name: Save Corpus Cache
uses: actions/cache/save@v6
with:
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