ci: switch to cargo-fuzz from honggfuzz #853
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This lint appears when running the stable compiler, not just clippy. We don't pin the stable compiler version, so this has started showing up in CI, which is a bit noisy.
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My local CI is failing on this. Investigating. |
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The issue seems to be with nightly-2025-03-21, which this crate is stuck on since #805 isn't passing. I will add some commits which update to the latest nightly here. |
I'm not sure if it's possible to link to .md files in the source code. If so, this isn't the way to do it.
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TBH I had thought we'd fixed these years ago..
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honggfuzz is increasingly hard for me to maintain in my local CI. It requires an exact match between the version of honggfuzz in the lockfile and the binary installed in the nix derivation, and these exact versions come with specific requirements about which rustc versions are allowable (and in particular, honggfuzz 0.5.56 does not work with rustc 1.74.0, which is the MSRV for rust-bitcoin). I also have to bend over backward to set compiler flags and make source directories writable. cargo-fuzz, meanwhile, requires nightly to *run* the fuzz tests, but does not require it for just running unit tests or building. (The latest version of libfuzzer-sys uses once_cell and requires a higher MSRV than we have, but we don't need to use the very latest version.)
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honggfuzz is increasingly hard for me to maintain in my local CI. It requires an exact match between the version of honggfuzz in the lockfile and the binary installed in the nix derivation, and these exact versions come with specific requirements about which rustc versions are allowable (and in particular, honggfuzz 0.5.56 does not work with rustc 1.74.0, which is the MSRV for rust-bitcoin). I also have to bend over backward to set compiler flags and make source directories writable.
Once we get this working here, I will open the same PR to rust-bitcoin. But I wanted to start here because it's an easier crate to maintain and also our fuzztests are in much better shape.