anchor.diff:  
   rustPlatform.buildRustPackage rec {
     pname = "cargo-c";
  -  version = "0.7.1";
  +  version = "0.7.2";
   
     src = stdenv.mkDerivation rec {
       name = "${pname}-source-${version}";
  
positive.code:     '';
    };
  
    cargoSha256 = "1nj54igm57h9d8hhqdgkay2nnblcdxhpnha68jqvjazd8a0bq3la";
  
    nativeBuildInputs = [ pkg-config ];
    buildInputs = [ openssl ]
  
negative.code:       owner = "lu-zero";
        repo = pname;
        rev = "v${version}";
        sha256 = "1rgwj3kf31n4rz0b7jw67wsgyapdycfic7plm5gm4n9rlslp5ax5";
      };
      cargoLock = fetchurl {
        url = "https://github.com/lu-zero/${pname}/releases/download/v${version}/Cargo.lock";
        sha256 = "0jnawnkf4m7cqcq9iahnxa53l61a5riax400n96vxrqf3fa752c6";
      };
  
      installPhase = ''
  