anchor.diff:  
     buildInputs = stdenv.lib.optionals stdenv.isDarwin [ Security ];
   
  -  cargoSha256 = "1r2fiwcjf739rkprrwidgsd9i5pjgk723ipazmlccz2jpwbrk7zr";
  +  cargoSha256 = "1fsfjavad1cbq1xvck2j5vyppxck606cpmqrwbs4fjvdmlbgx3gp";
   
     # Some tests fail because they need network access.
     # However, Travis ensures a proper build.
  
positive.code: 
  rustPlatform.buildRustPackage rec {
    pname = "cargo-make";
    version = "0.20.0";
  
    src =
      let
  
negative.code: 
    meta = with stdenv.lib; {
      description = "A Rust task runner and build tool";
      homepage = "https://github.com/sagiegurari/cargo-make";
      license = licenses.asl20;
      maintainers = with maintainers; [ xrelkd ];
      platforms = platforms.all;
  