anchor.diff:  
     nuid = buildFromGitHub {
       version = 3;
  -    rev = "v1.0.0";
  +    rev = "33c603157d6fd1b0ac2599bcc4a286b36479a06d";
       owner = "nats-io";
       repo = "nuid";
  -    sha256 = "1fxdhbhww71gsfb91z5nxs6fa4kngvhvd6bvsvr5qsqdmqyxbqng";
  +    sha256 = "1ympbdk16hik281q1y60c0rwzm3hqfvy0j0pym505k301z51vmiw";
  +    date = "2017-10-25";
     };
   
     objecthash = buildFromGitHub {
  
positive.code: 
    grpc-gateway = buildFromGitHub {
      version = 3;
      rev = "b2423da79386df5bb9d02f5d3d5793042050a0d9";
      owner = "grpc-ecosystem";
      repo = "grpc-gateway";
      sha256 = "1piplxvk88n1mikpajb5nc1fi6zbfpradxdzg1p0vmawk5yhcczn";
      propagatedBuildInputs = [
        genproto
        glog
  
negative.code: 
    ugorji_go = buildFromGitHub {
      version = 3;
      date = "2017-10-30";
      rev = "d03304bb1d83c196fd3017dca37e89a4504b3676";
      owner = "ugorji";
      repo = "go";
      sha256 = "11pi7zyssxgg45acwxcxlsp88vby3nrc3a88p5ph5f0rlnq4shg6";
      goPackageAliases = [
        "github.com/hashicorp/go-msgpack"
      ];
  