anchor.diff:    };
   
     etcd = buildFromGitHub {
  -    rev    = "v2.1.2";
  +    rev    = "v2.2.2";
       owner  = "coreos";
       repo   = "etcd";
  -    sha256 = "1d3wl9rqbhkkdhfkjfrzjfcwz8hx315zbjbmij3pf62bc1p5nh60";
  +    sha256 = "0yqv2li4aq9wj4zvxph9bd5i4ww6mn5a9fa4ykng3m3glj94z38b";
  +  };
  +
  +  etcd-client = buildFromGitHub {
  +    date   = "2015-12-04";
  +    rev    = "5a4a5998a3f73e53d6acc525fe5743fe30e1373d";
  +    owner  = "coreos";
  +    repo   = "etcd";
  +    sha256 = "0prkzmdipx9qxln4nw80w5z4ra90wryzl3jmhs6bkcy93ipy1ws7";
  +    subPackages = [ "client" "pkg/pathutil" "pkg/transport" "pkg/types" ];
     };
   
     fsnotify.v0 = buildGoPackage rec {
  
positive.code:   };
  
    aws-sdk-go = buildFromGitHub {
      #rev    = "a28ecdc9741b7905b5198059c94aed20868ffc08";
      rev    = "127313c1b41e534a0456a68b6b3a16712dacb35d";
      owner  = "aws";
      repo   = "aws-sdk-go";
      #sha256 = "1kgnp5f5c5phmihh8krar9rbkfg0lk73imjhjvkhxirhw04g3n5j";
      sha256 = "0gd4nzv5jl02qi7g0y8lv6jadk0p52bpbl1r7pfgy8mn1vfxs37m";
      goPackageAliases = [
        "github.com/awslabs/aws-sdk-go"
      ];
      buildInputs = [ gucumber testify ];
      propagatedBuildInputs = [ go-ini ];
  
      preBuild = ''
  
negative.code:     sha256 = "0k48k8815k433s25lh8my2swl89kczp0m2gbqzjlpy1xwmk06nxc";
    };
  
    asn1-ber = buildFromGitHub {
      date   = "2015-09-23";
      rev    = "4e86f4367175e39f69d9358a5f17b4dda270378d";
      owner  = "go-asn1-ber";
      repo   = "asn1-ber";
      sha256 = "13p8s74kzklb5lklfpxwxb78rknihawv1civ4s9bfqx565010fwk";
      goPackageAliases = [
        "github.com/nmcclain/asn1-ber"
        "github.com/vanackere/asn1-ber"
        "gopkg.in/asn1-ber.v1"
      ];
    };
  
    assertions = buildGoPackage rec {
  