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The current version of CRC32C is 0.6.8.

0.6.5 (older version) ub-risk-3

From google/supply-chain copy of google/rust-crate-audits. By Manish Goregaokar.

Reviewed in CL 608991681 Does not have much unsafe (some use of hardware intrinsics, one bit of pointer manipulation). However, the unsafe isn't documented enough. Can be upgraded to a rating 2 or 1 with some unsafe documentation.

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ub-risk-3 (implies ub-risk-4)

Mild unsoundness or suboptimal soundness.

Full description of the audit criteria can be found at https://github.com/google/rust-crate-audits/blob/main/auditing_standards.md#ub-risk-3

ub-risk-4
Implied by other criteria

Extreme unsoundness.

Full description of the audit criteria can be found at https://github.com/google/rust-crate-audits/blob/main/auditing_standards.md#ub-risk-4


Lib.rs has been able to verify that all files in the crate's tarball are in the crate's repository with a git tag matching the version. Please note that this check is still in beta, and absence of this confirmation does not mean that the files don't match.

Crates in the crates.io registry are tarball snapshots uploaded by crates' publishers. The registry is not using crates' git repositories, so there is a possibility that published crates have a misleading repository URL, or contain different code from the code in the repository.

To review the actual code of the crate, it's best to use cargo crev open crc32c. Alternatively, you can download the tarball of crc32c v0.6.8 or view the source online.