anchor.diff:      propagatedBuildInputs = [ Moose TryTiny ];
     };
   
  +  MooseXAttributeHelpers = buildPerlPackage {
  +    name = "MooseX-AttributeHelpers-0.23";
  +    src = fetchurl {
  +      url = mirror://cpan/authors/id/D/DR/DROLSKY/MooseX-AttributeHelpers-0.23.tar.gz;
  +      sha256 = "3f63f60d94d840a309d9137f78605e15f07c977fd15a4f4b55bd47b65ed52be1";
  +    };
  +    buildInputs = [ Moose TestException ];
  +    propagatedBuildInputs = [ Moose ];
  +    meta = {
  +      description = "Extend your attribute interfaces (deprecated)";
  +      license = "perl";
  +    };
  +  };
  +
     MooseXClone = buildPerlPackage {
       name = "MooseX-Clone-0.05";
       src = fetchurl {
  
positive.code:     };
    };
  
    NetServer = buildPerlPackage {
      name = "Net-Server-2.007";
      src = fetchurl {
  
negative.code:     };
    };
  
    IOTieCombine = buildPerlPackage {
      name = "IO-TieCombine-1.002";
      src = fetchurl {
        url = mirror://cpan/authors/id/R/RJ/RJBS/IO-TieCombine-1.002.tar.gz;
        sha256 = "fd4f59e82852fd8b868dd1642cb6ec9caf32a597803fdce2cbe8d580c3b41d44";
      };
      meta = {
        homepage = https://github.com/rjbs/io-tiecombine;
        description = "Produce tied (and other) separate but combined variables";
        license = "perl";
      };
    };
  
    IOTty = buildPerlPackage rec {
      name = "IO-Tty-1.10";
      src = fetchurl {
  