After we replaced the Cargo.lock files in nixpkgs with cargoHash, I've not come across any package that actually prints out the correct hash that cargoHash is missing if I replace src.rev (or just source in general).

Is this currently broken in Nixpkgs? Anyone got an example of a package this works for? I find this applies to me both with callPackage and overrideAttrs.

Examples being thumbs, nufmt, and even kickoff (which does implement finalAttrs)