anchor.diff:      homepage = https://www.rustup.rs/;
       license = with licenses; [ asl20 /* or */ mit ];
       maintainers = [ maintainers.mic92 ];
  +    platforms = platforms.all;
     };
   }
  
positive.code: 
  rustPlatform.buildRustPackage rec {
    pname = "rustup";
    version = "1.18.2";
  
    src = fetchFromGitHub {
      owner = "rust-lang";
      repo = "rustup.rs";
      rev = version;
      sha256 = "0lyn06vzp5406sjng7msifigkal2lafppqjbdnigx8yvgxqgd06f";
    };
  
    cargoSha256 = "0yxjy1kls80fcpwskklmihkqva16s6mawa8rdxc3zz8g588am03c";
  
    nativeBuildInputs = [ pkgconfig ];
  
  
negative.code:     '')
    ];
  
    doCheck = !stdenv.isAarch64 && !stdenv.isDarwin;
  
    postInstall = ''
      pushd $out/bin
  