anchor.diff:        go-humanize
         go-semver
         go-systemd
  +      groupcache
         grpc
         grpc-gateway
  +      jwt-go
         net
         pb_v1
         pflag
  
positive.code: 
    go-ethereum = buildFromGitHub {
      version = 3;
      date = "2017-06-07";
      rev = "80f7c6c2996ad47f70a5070c400b1fd87a20c59c";
      owner  = "ethereum";
      repo   = "go-ethereum";
      sha256 = "1fakqcpbndijv0fw51713xpvfnlkbryprdif3kw1s3gl1g2hdf9m";
      subPackages = [
        "crypto/sha3"
      ];
  
negative.code:   };
  
    memberlist = buildFromGitHub {
      version = 3;
      rev = "16fe34d996eba2b68f6f46f26c51c617c6bc1bf0";
      owner = "hashicorp";
      repo = "memberlist";
      sha256 = "1010c88qq8yavqg461rvzv231fqwyl3sc43ia1imm29lc8gw655n";
      propagatedBuildInputs = [
        dns
        ugorji_go
  