anchor.diff:    };
   
     aws-sdk-go = buildFromGitHub {
  -    #rev    = "a28ecdc9741b7905b5198059c94aed20868ffc08";
  -    rev    = "127313c1b41e534a0456a68b6b3a16712dacb35d";
  +    date   = "2015-12-03";
  +    rev    = "d4677067b535e7a06201ce491b41f4b73dcc73a9";
       owner  = "aws";
       repo   = "aws-sdk-go";
  -    #sha256 = "1kgnp5f5c5phmihh8krar9rbkfg0lk73imjhjvkhxirhw04g3n5j";
  -    sha256 = "0gd4nzv5jl02qi7g0y8lv6jadk0p52bpbl1r7pfgy8mn1vfxs37m";
  -    goPackageAliases = [
  -      "github.com/awslabs/aws-sdk-go"
  -    ];
  -    buildInputs = [ gucumber testify ];
  +    sha256 = "1hys46b5if1whs11lq3qa10rcp2saf0lnmwd7i7ymh6wpjvmwcnq";
  +    buildInputs = [ testify go-jmespath ini gucumber tools ];
       propagatedBuildInputs = [ go-ini ];
   
       preBuild = ''
  
positive.code:   };
  
    go-zookeeper = buildFromGitHub {
      rev    = "5bb5cfc093ad18a28148c578f8632cfdb4d802e4";
      date   = "2015-06-02";
      owner  = "samuel";
      repo   = "go-zookeeper";
      sha256 = "1kpx1ymh7rds0b2km291idnyqi0zck74nd8hnk72crgz7wmpqv6z";
    };
  
    lint = buildFromGitHub {
  
negative.code: 
      excludedPackages = "bench";
  
      buildInputs = [ go-nsq go-options semver perks toml bitly.go-hostpool timer_metrics ];
    };
  
    ntp = buildFromGitHub {
  