anchor.diff:  
     go-dockerclient = buildFromGitHub {
       version = 2;
  -    date = "2016-11-24";
  -    rev = "06afd508f2c79dec3a44c5c92b3c2d7c235b8e22";
  +    date = "2016-12-05";
  +    rev = "949957bb343a416e28c0172561218c5841993619";
       owner = "fsouza";
       repo = "go-dockerclient";
  -    sha256 = "01aas4hl6m6jw5mcayzjypr79rym6zbvlsyzgyymfaxy13083d37";
  +    sha256 = "02afz63ffm01bb6pzszlkdw31hpy16nc9xp96nrg9rd1cwyd4cgk";
       propagatedBuildInputs = [
         docker_for_go-dockerclient
         go-cleanhttp
  
positive.code:     version = 2;
      owner = "spf13";
      repo = "fsync";
      rev = "1773df7b269b572f0fc8df916b38e3c9d15cee66";
      date = "2016-07-01";
      sha256 = "0khg3453ckyralw9dhlavf1vs433prlwpvfsk4n8z2aw8nzs2vb9";
      buildInputs = [
        afero
      ];
  
negative.code: 
    prometheus_common = buildFromGitHub {
      version = 2;
      date = "2016-12-01";
      rev = "195bde7883f7c39ea62b0d92ab7359b5327065cb";
      owner = "prometheus";
      repo = "common";
      sha256 = "115a6rkc17wz516n8fd0mvmp9802ggz1x4296svl12vb8p15s1c3";
      buildInputs = [
        logrus
        net
  