anchor.diff:        owner = "lu-zero";
         repo = pname;
         rev = "v${version}";
  -      sha256 = "0n52xh4qg12bvvp2dgx5wfj5f31qijdqahasa3qfa3c3aqq7cvvg";
  +      sha256 = "0ks2w3gclahidv6r6i0d0d6sli7r8wabxzgmhq03czy5w7kr0x56";
       };
       cargoLock = fetchurl {
         url = "https://github.com/lu-zero/${pname}/releases/download/v${version}/Cargo.lock";
  -      sha256 = "0296187hsaxxmqhsrrva4qf313jwh3z08j1vxcbislxdq8xg32qb";
  +      sha256 = "0czy5q8hkjqyn53p7cjxnxfgwygx2a6casjb4nj5gxss2x3haih6";
       };
   
       installPhase = ''
  
positive.code:     '';
    };
  
    cargoSha256 = "1gwyszpcmss2d0lm5hvf3b48jy7b0fm7xizhrl3wd6rzw7pg06zd";
  
    nativeBuildInputs = [ pkg-config ];
    buildInputs = [ openssl ]
  
negative.code: 
  rustPlatform.buildRustPackage rec {
    pname = "cargo-c";
    version = "0.6.13";
  
    src = stdenv.mkDerivation rec {
      name = "${pname}-source-${version}";
  