anchor.diff:      ];
     };
   
  -  assertions = buildGoPackage rec {
  -    version = "1.5.0";
  -    name = "assertions-${version}";
  -    goPackagePath = "github.com/smartystreets/assertions";
  -    src = fetchurl {
  -      name = "${name}.tar.gz";
  -      url = "https://github.com/smartystreets/assertions/archive/${version}.tar.gz";
  -      sha256 = "1s4b0v49yv7jmy4izn7grfqykjrg7zg79dg5hsqr3x40d5n7mk02";
  -    };
  -    buildInputs = [ oglematchers ];
  -    propagatedBuildInputs = [ goconvey ];
  -    doCheck = false;
  -  };
  -
     aws-sdk-go = buildFromGitHub {
       rev = "v1.4.3";
       owner  = "aws";
  
positive.code:     owner = "gorilla";
      repo = "mux";
      sha256 = "1iicj9v3ippji2i1jf2g0jmrvql1k2yydybim3hsb0jashnq7794";
      propagatedBuildInputs = [ context ];
    };
  
    muxado = buildFromGitHub {
  
negative.code:     owner  = "jbenet";
      repo   = "go-base58";
      sha256 = "0sbss2611iri3mclcz3k9b7kw2sqgwswg4yxzs02vjk3673dcbh2";
    };
  
    go-bindata-assetfs = buildFromGitHub {
  