anchor.diff:    };
   
     genproto = buildFromGitHub {
  -    version = 2;
  -    date = "2017-04-04";
  -    rev = "411e09b969b1170a9f0c467558eb4c4c110d9c77";
  +    version = 3;
  +    date = "2017-05-17";
  +    rev = "bb3573be0c484136831138976d444b8754777aff";
       owner  = "google";
       repo   = "go-genproto";
       goPackagePath = "google.golang.org/genproto";
  -    sha256 = "0wn4yflplv9kpf4qahg4fyb0l52513y416wvn9pxrl66rfpig8ic";
  +    sha256 = "0cir398iryind1982g4gj99f75n6g2wwb5bswzzbpzjqpq4psc5y";
       propagatedBuildInputs = [
         grpc
         net
  
positive.code:     version = 3;
      owner = "minio";
      repo = "minio-go";
      rev = "85f15b007f08e11a62c769abe65299b812fd2e0d";
      sha256 = "1bq8aqcxxvqsg21755ggg4dik0jnapg2syjf167s5706nfhiv01i";
      meta.useUnstable = true;
      date = "2017-05-15";
    };
  
    missinggo = buildFromGitHub {
  
negative.code:   };
  
    go-memdb = buildFromGitHub {
      version = 3;
      date = "2017-05-16";
      rev = "e889dc5b880d6619aa3ccc653d802ae172c0904c";
      owner = "hashicorp";
      repo = "go-memdb";
      sha256 = "1amnwghy75qfgpf4jnq4lbjjd3r1wk5i88i8c77yk4d2ayh2zj4i";
      propagatedBuildInputs = [
        go-immutable-radix
      ];
  