anchor.diff:  
     gopacket = buildFromGitHub {
       version = 3;
  -    rev = "v1.1.13";
  +    rev = "v1.1.14";
       owner = "google";
       repo = "gopacket";
  -    sha256 = "14jmwsiks104higrf50rl6hs3364xraacchdn5ryfr22mmfdg93n";
  +    sha256 = "0z68x9isjd4l7rxdb6zwq0qf52b5k1vc48v23j9gws3rgvq046wv";
       buildInputs = [
         pkgs.libpcap
         pkgs.pf-ring
  
positive.code: 
    circonus-gometrics = buildFromGitHub {
      version = 3;
      rev = "v1.1.0";
      owner  = "circonus-labs";
      repo   = "circonus-gometrics";
      sha256 = "1kzig1361kld8amiw9cbxk5hx8wmsh185wvr43ql0cii5ja4q722";
      propagatedBuildInputs = [
        circonusllhist
        go-retryablehttp
  
negative.code:     version = 3;
      owner = "klauspost";
      repo = "reedsolomon";
      date = "2017-10-01";
      rev = "6bb6130ff6a76a904c1841707d65603aec9cc288";
      sha256 = "055x7lglmb6166x4hph53iyzlgq188rxj9z3x1dk5s1x4pm5g6yl";
      propagatedBuildInputs = [
        cpuid
      ];
  