anchor.diff:        memberlist
         net-rpc-msgpackrpc
         raft_v1
  -      raft-boltdb
  +      raft-boltdb_v1
         scada-client
         serf
         yamux
  
positive.code:     meta.autoUpdate = false;
    };
  
    raft-boltdb = buildFromGitHub {
      version = 2;
      date = "2016-09-13";
      rev = "a8adffd05b79e3d8b1817d46bbe387a112265b3e";
      owner  = "hashicorp";
      repo   = "raft-boltdb";
      sha256 = "0kj22b0xk7avzwymkdi98f9vbbgslfd187njd7128nhgmdvfdn0m";
      propagatedBuildInputs = [ bolt ugorji_go raft_v2 ];
    };
  
    ratecounter = buildFromGitHub {
  
negative.code:   raft_v1 = buildFromGitHub {
      version = 2;
      date = "2016-08-23";
      rev = "5f09c4ffdbcd2a53768e78c47717415de12b6728";
      owner  = "hashicorp";
      repo   = "raft";
  