anchor.diff:        logutils
         memberlist
         net-rpc-msgpackrpc
  -      raft
  +      raft_v1
         raft-boltdb
         scada-client
         serf
  
positive.code:     date = "2016-09-06";
    };
  
    raft = buildFromGitHub {
      version = 2;
      date = "2016-08-23";
      # Use the library-v2-stage-one branch until it is merged
      # into master.
      rev = "c69c15dd73b6695ba75b3502ce6b332cc0042c83";
      owner  = "hashicorp";
      repo   = "raft";
      sha256 = "8a8425ef6eb06d3f183ade8f911dcd399c53444d79ed9b108fc937c884a822f0";
      propagatedBuildInputs = [ armon_go-metrics ugorji_go ];
    };
  
    raft-boltdb = buildFromGitHub {
  
negative.code:     owner  = "hashicorp";
      repo   = "raft-boltdb";
      sha256 = "0kj22b0xk7avzwymkdi98f9vbbgslfd187njd7128nhgmdvfdn0m";
      propagatedBuildInputs = [ bolt ugorji_go raft_v2 ];
    };
  
    ratecounter = buildFromGitHub {
  