anchor.diff:      sha256 = "1gvgkx7llklz6plapb95fcql7d34i6j7anlvksqhdirpja465jnm";
     };
   
  -  ugorji.go = buildGoPackage rec {
  -    rev = "03e33114d4d60a1f37150325e15f51b0fa6fc4f6";
  -    name = "ugorji-go-${stdenv.lib.strings.substring 0 7 rev}";
  -    goPackagePath = "github.com/ugorji/go";
  +  ugorji.go = buildFromGitHub {
  +    date = "2015-12-01";
  +    rev = "357a44b2b13e2711a45e30016508134101477610";
  +    owner = "ugorji";
  +    repo = "go";
  +    sha256 = "08nyxvp55mk89gq5pg4zfn6hffqrn7qfha4dwfj00qcv9nxzk8ln";
       goPackageAliases = [ "github.com/hashicorp/go-msgpack" ];
  -
  -    src = fetchFromGitHub {
  -      inherit rev;
  -      owner = "ugorji";
  -      repo = "go";
  -      sha256 = "01kdzgx23cgb4k867m1pvsw14hhdr9jf2frqy6i4j4221055m57v";
  -    };
     };
   
     goamz = buildGoPackage rec {
  
positive.code:   };
  
    hcl = buildFromGitHub {
      rev  = "54864211433d45cb780682431585b3e573b49e4a";
      owner  = "hashicorp";
      repo   = "hcl";
      sha256 = "07l2dydzjpdgm2d4a72hkmincn455j3nrafg6hs3c23bkvizj950";
      buildInputs = [ go-multierror ];
    };
  
    hipchat-go = buildGoPackage rec {
  
negative.code:   };
  
    muxado = buildFromGitHub {
      date   = "2014-03-12";
      rev    = "f693c7e88ba316d1a0ae3e205e22a01aa3ec2848";
      owner  = "inconshreveable";
      repo   = "muxado";
  