anchor.diff:      sha256 = "05fqfwz34n4ijw7ydw2n6bh4bv64rhks85cn720sy5r7bmhfmfa8";
     };
     cargoSha256 = "045qm7cyg3sdvf22i8b9cz8gsvggs5bn9xz8k1pvn5gxb7zj24cx";
  -  nativeBuildInputs = [ pkgconfig ];
  +  nativeBuildInputs = [ pkgconfig makeWrapper ];
     buildInputs = [ openssl curl ]
       ++ stdenv.lib.optional stdenv.isDarwin Security;
   
  
positive.code: { stdenv, rustPlatform, fetchFromGitHub, pkgconfig, openssl, curl
  , Security
  }:
  
  rustPlatform.buildRustPackage rec {
  
negative.code:     cp ./command-not-found.sh $out/etc/profile.d/command-not-found.sh
      substituteInPlace $out/etc/profile.d/command-not-found.sh \
        --replace "@out@" "$out"
      wrapProgram $out/bin/nix-index \
        --prefix PATH : "${stdenv.lib.makeBinPath [ nix ]}"
    '';
  
    meta = with stdenv.lib; {
  