anchor.diff:  
     go-dockerclient = buildFromGitHub {
       version = 2;
  -    date = "2017-01-20";
  -    rev = "53f04ab33b89eef256c320c36435a10b672d473d";
  +    date = "2017-01-26";
  +    rev = "41e28db8e0cd3d55b80c9c71094093de7406f3c2";
       owner = "fsouza";
       repo = "go-dockerclient";
  -    sha256 = "1da80a4h7wl9s4byr51nbls8b51xkm72dhvm2fgfldiv0bazygqp";
  +    sha256 = "09ncvmsyix9b09xh9ql5szm67hjmagmyc1qbspmqnv1qahgki59x";
       propagatedBuildInputs = [
         docker_for_go-dockerclient
         go-cleanhttp
  
positive.code: 
    go-oidc = buildFromGitHub {
      version = 2;
      date = "2017-01-19";
      rev = "2cc7913f9f6f26eff95b633c29bfe04895d38121";
      owner  = "coreos";
      repo   = "go-oidc";
      sha256 = "19fax428py8fjggqk9nd5pvrl5phcvw811li1lskrr10n3jad6xg";
      propagatedBuildInputs = [
        cachecontrol
        clockwork
  
negative.code: 
    dns = buildFromGitHub {
      version = 2;
      rev = "2be0b50f7f04c7223e2b82601ac9ca1e199a9c21";
      date = "2017-01-26";
      owner  = "miekg";
      repo   = "dns";
      sha256 = "024gf9zbw2k7ywyd14pmkf9lzjlbac0dhjwmcwzgag1p7yq56qgy";
    };
  
    weppos-dnsimple-go = buildFromGitHub {
  