anchor.diff:    };
   
     docker_go-metrics = buildFromGitHub {
  -    version = 5;
  +    version = 6;
       date = "2018-02-09";
       rev = "399ea8c73916000c64c2c76e8da00ca82f8387ab";
       owner = "docker";
       repo = "go-metrics";
  -    sha256 = "1nssja0pjqr41ggpiwc9f4ha9w9f9ajrq7jqbk6jsnfzzl4snl6y";
  +    sha256 = "de50ab09fddf592dcd5c581e9ca54a2ef1a4207189f178df0b24637981925adb";
       propagatedBuildInputs = [
         prometheus_client_golang
       ];
  
positive.code:     version = 6;
      owner = "libp2p";
      repo = "go-libp2p-crypto";
      rev = "v1.6.2";
      sha256 = "03ij86hq40cpnnxgjka365xy0sb3dbp38sdwpvb6912hrsypp8qp";
      propagatedBuildInputs = [
        btcd
        ed25519
  
negative.code: 
    rabbit-hole = buildFromGitHub {
      version = 6;
      rev = "7fa9b8b9bd6a453320511c9fdd67b216bb283188";
      owner  = "michaelklishin";
      repo   = "rabbit-hole";
      sha256 = "0291e441f7a8fb8cbff050f55f5be22e823d816be5c7514d100f26b290c61f35";
      date = "2018-10-19";
    };
  
    radius = buildFromGitHub {
      version = 6;
      rev = "aae5d47e21a8f0022d118dd2cba63fc92c94cc73";
      date = "2018-10-22";
      owner  = "layeh";
      repo   = "radius";
      sha256 = "404b6e074f921002da782980f1bf18647ee25d62a0a0dacb68400b455ed1d8d1";
      goPackagePath = "layeh.com/radius";
    };
  
    raft = buildFromGitHub {
      version = 6;
      date = "2018-08-23";
      rev = "82694fb663be3ffa7769961ee9a65e4c39ebbf2c";
      owner  = "hashicorp";
      repo   = "raft";
      sha256 = "0b354cb978f1c2aa44022d8224ea2c9a3a36ac03b6bf27fdd434d2f81d58fbaa";
      meta.useUnstable = true;
      propagatedBuildInputs = [
        armon_go-metrics
  