anchor.diff:    };
   
     sys = buildFromGitHub {
  -    rev = "f78f5183ff267d751d0af20bbe59158f3e4cd53e";
  -    date = "2016-05-15";
  +    rev = "d4feaf1a7e61e1d9e79e6c4e76c6349e9cab0a03";
  +    date = "2016-05-16";
       owner  = "golang";
       repo   = "sys";
  -    sha256 = "0vdgwxvlbm3m8y8syxz0kwcnz2askbpm2f3r4z9lc9kfrfrin9k4";
  +    sha256 = "10v013f1gsn63ydhpmyy778b5iljz29j3msl68nab5fbiy7hzmwr";
       goPackagePath = "golang.org/x/sys";
       goPackageAliases = [
         "github.com/golang/sys"
  
positive.code:   };
  
    gocql = buildFromGitHub {
      rev = "2e0390b6fbe023664fcdaa9767f0f83fbe78956d";
      owner  = "gocql";
      repo   = "gocql";
      sha256 = "048y18ing8iynn08qqqjz1psljp1ci40prbh447ic6pqm4vhdpvj";
      propagatedBuildInputs = [ inf snappy hailocab_go-hostpool net ];
      date = "2016-05-02";
    };
  
    goconvey = buildGoPackage rec {
  
negative.code:   };
  
    google-api-go-client = buildFromGitHub {
      rev = "4300f6b0c8a7f09e521dd0af2cee27e28846e037";
      date = "2016-05-12";
      owner = "google";
      repo = "google-api-go-client";
      sha256 = "16hmzwqjcgb3ms50nzd3nqpfmk1z0q7mhb5wabpgh5jsz4m6j9vm";
      goPackagePath = "google.golang.org/api";
      goPackageAliases = [ "github.com/google/google-api-client" ];
      buildInputs = [ net ];
  