cargo-llvm-cov: fix build, 0.6.12 -> 0.6.14 (#353741)

# If the tests are broken, it's probably for one of two reasons:

#

# 1. The version of llvm used doesn't match the expectations of rustc and/or

#    cargo-llvm-cov. This is relatively unlikely because we pull llvm out of

#    rustc's attrset, so it *should* be the right version as long as this is the

#    case.

#    cargo-llvm-cov.

# 2. Nixpkgs has changed its rust infrastructure in a way that causes

#    cargo-llvm-cov to misbehave under test. It's likely that even though the

#    tests are failing, cargo-llvm-cov will still function properly in actual

, fetchurl

, fetchFromGitHub

, rustPlatform

, rustc

, llvmPackages_19

, git

}:

let

  pname = "cargo-llvm-cov";

  version = "0.6.12";

  version = "0.6.14";

  owner = "taiki-e";

  homepage = "https://github.com/${owner}/${pname}";

  llvm = rustc.llvmPackages.llvm;

  inherit (llvmPackages_19) llvm;

  # Download `Cargo.lock` from crates.io so we don't clutter up Nixpkgs

  cargoLock = fetchurl {

    name = "Cargo.lock";

    url = "https://crates.io/api/v1/crates/${pname}/${version}/download";

    sha256 = "sha256-QMO5J5c8MQr84w6X74oQrHV99cjSUVfpC8Ub1csQ0gI=";

    sha256 = "sha256-f0xO+UxB9f6q6q8QyjtP+z+U146+8GLmLKgGmAs/YYA=";

    downloadToTemp = true;

    postFetch = ''

      tar xzf $downloadedFile ${pname}-${version}/Cargo.lock

    inherit owner;

    repo = pname;

    rev = "v${version}";

    sha256 = "sha256-BlXgbCWjGya/I94nqfjBqQPSWnVhyhNn0oSRL9xiS6k=";

    sha256 = "sha256-iJrnNDSMich5OzEbPgnQWLVz6Zj/MUIzEsaBzqVdoDg=";

  };

  # Upstream doesn't include the lockfile so we need to add it back

    cp ${cargoLock} source/Cargo.lock

  '';

  cargoHash = "sha256-nabO19JePQRuhxsbm5wVIU4+5si6p0VgqR2QLmLeivU=";

  cargoHash = "sha256-kYKQ7ddgoSvarF0HG/yESu5cU87DUgYm9tDkem5a/gw=";

  # `cargo-llvm-cov` reads these environment variables to find these binaries,

  # which are needed to run the tests