anchor.diff:  
     procfs = buildFromGitHub {
       version = 5;
  -    rev = "85fadb6e89903ef7cca6f6a804474cd5ea85b6e1";
  -    date = "2018-01-23";
  +    rev = "cb4147076ac75738c9a7d279075a253c0cc5acbd";
  +    date = "2018-01-25";
       owner  = "prometheus";
       repo   = "procfs";
  -    sha256 = "1nyi4klsy4nxclxw2ij1f9inl2cahwmdgl0qk9aipvbs2mbi32kx";
  +    sha256 = "126fvs00g1asj3lyhyb292w246dpicl3a2dsbg9cc1gbb7vkvhvz";
     };
   
     profile = buildFromGitHub {
  
positive.code: 
    datadog-go = buildFromGitHub {
      version = 5;
      rev = "812ce8f44d706dcbc5a33efc1bb48bbc09e746b8";
      owner = "DataDog";
      repo = "datadog-go";
      sha256 = "0cp0ff1r58zcbirqxjdpgqsnfn0n1w639pc96b6m2c8iwfwh8m39";
      date = "2018-01-24";
    };
  
    dbus = buildFromGitHub {
  
negative.code:     ];
      excludedPackages = "\\(test\\|suite\\|fixtures\\|examples\\|docker\\)";
      meta.autoUpdate = false;
      #patches = [
      #  (fetchTritonPatch {
      #    rev = "bbf0173a53b7b44b052022532eaca9aa0565f5e3";
      #    file = "t/teleport/fix.patch";
      #    sha256 = "7deb529032415073c1883b0557b35156c28b9010f6dab0ae41c4262f1ab38f8b";
      #  })
      #];
      #postPatch = ''
      #  sed -i 's,--gofast_out,--go_out,' Makefile
      #'';
      #preBuild = ''
      #  GATEWAY_SRC=$(readlink -f unpack/grpc-gateway*)/src
      #  API_SRC=$GATEWAY_SRC/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis
      #  PROTO_INCLUDE=$GATEWAY_SRC:$API_SRC \
      #    make -C go/src/$goPackagePath buildbox-grpc
      #'';
      preFixup = ''
        test -f "$bin"/bin/tctl
      '';
  