rust_release_artefact: Extract and install Rust release artefacts
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Repository: <https://gitlab.com/Screwtapello/rust_release_artefact>
Documentation: <https://docs.rs/rust_release_artefact>
TODO
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- Update `ExtractedArtefact::new()` to use `walkdir` to search for artefact
marker files.
- Would it be neater to toss the first path-component of archives, rather than
extracting it and having to rummage around to find the artefact metadata?