anchor.diff:        owner = "lu-zero";
         repo = pname;
         rev = "v${version}";
  -      sha256 = "0ks2w3gclahidv6r6i0d0d6sli7r8wabxzgmhq03czy5w7kr0x56";
  +      sha256 = "04hrk3vy8294vxcsggdpcs8hg3ykzj2564ifsqc4zwz4b4wd1p8l";
       };
       cargoLock = fetchurl {
         url = "https://github.com/lu-zero/${pname}/releases/download/v${version}/Cargo.lock";
  -      sha256 = "0czy5q8hkjqyn53p7cjxnxfgwygx2a6casjb4nj5gxss2x3haih6";
  +      sha256 = "0rqb6ssqsdlm8zbshbxkwxlyy7j7p2gyficavzz33cw9g6fpmzbd";
       };
   
       installPhase = ''
  
positive.code: 
  rustPlatform.buildRustPackage rec {
    pname = "cargo-c";
    version = "0.6.13";
  
    src = stdenv.mkDerivation rec {
      name = "${pname}-source-${version}";
  
negative.code:     '';
    };
  
    cargoSha256 = "1q2s28nqd6l9qmhmdksdjjlypxry5ff18i2pgwmgiilcry51mj4b";
  
    nativeBuildInputs = [ pkg-config ];
    buildInputs = [ openssl ]
  