anchor.diff:  
     oauth2 = buildFromGitHub {
       version = 3;
  -    rev = "d89af98d7c6bba047c5a2622f36bc14b8766df85";
  -    date = "2017-09-01";
  +    rev = "13449ad91cb26cb47661c1b080790392170385fd";
  +    date = "2017-09-12";
       owner = "golang";
       repo = "oauth2";
  -    sha256 = "0fdmgzbssq2cx20gxmnbj98ld2faw6gvbnkvak35bgs09xlxjwjg";
  +    sha256 = "0p0gibffy3dk1kq0zgwikhxlwhmdwbw30cfwfwxq5ndqasfz4p7i";
       goPackagePath = "golang.org/x/oauth2";
       propagatedBuildInputs = [
         appengine
  
positive.code:     repo = "common";
      sha256 = "0wn8gz95v27z17l99wvswzyr97qgxw5j8ar87wpylrx5x68b9d1h";
      buildInputs = [
        net
        prometheus_client_model
        protobuf
        sys
      ];
      propagatedBuildInputs = [
        golang_protobuf_extensions
  
negative.code: 
    go-floodsub = buildFromGitHub {
      version = 3;
      rev = "9366bd3c3107c755e9b111afafa264b7c823ba35";
      owner  = "libp2p";
      repo   = "go-floodsub";
      sha256 = "120kla8yrcqk26hqhvqrqgwvcpbwzgiicymqci356hgwmls5n2ag";
      date = "2017-09-16";
      propagatedBuildInputs = [
        gogo_protobuf
        go-libp2p-host
  