anchor.diff:  
   rustPlatform.buildRustPackage rec {
     pname = "cargo-c";
  -  version = "0.8.1";
  +  version = "0.9.2";
   
     src = stdenv.mkDerivation rec {
       name = "${pname}-source-${version}";
  
positive.code:       owner = "lu-zero";
        repo = pname;
        rev = "v${version}";
        sha256 = "0fd0xql5cbqgmir2z3ah91iasaq9133wmi5bnhiy3dv7drcqv4rc";
      };
      cargoLock = fetchurl {
        url = "https://github.com/lu-zero/${pname}/releases/download/v${version}/Cargo.lock";
        sha256 = "1xlh3h77rxhqyr1nkqyanb120lwdks6fklh202camqpmznd763g5";
      };
  
      installPhase = ''
  
negative.code:     '';
    };
  
    cargoSha256 = "0c0vn2pcy5px02mc0l4a3w7z9n8hc6br5w3ww6nrav5w6911jp52";
  
  
    nativeBuildInputs = [ pkg-config ];
    buildInputs = [ openssl ]
  