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:       owner = "lu-zero";
        repo = pname;
        rev = "v${version}";
        sha256 = "1a348ys4lbgsr23px81kw985i5bp8z75wgzl9l2jv9sdzirpb8k4";
      };
      cargoLock = fetchurl {
        url = "https://github.com/lu-zero/${pname}/releases/download/v${version}/Cargo.lock";
        sha256 = "1f78wlid8jx26pqybmafzcl1656nnp87hdiib0v1p5k73mk4ymvy";
      };
  
      installPhase = ''
  
negative.code:     '';
    };
  
    cargoSha256 = "0svmhq64aqw1vidq8jmw7w4xhhnyp04vcs9yzhjyz25c4cn9grsf";
  
    nativeBuildInputs = [ pkg-config ];
    buildInputs = [ openssl ]
  