anchor.diff:    };
   
     dns = buildFromGitHub {
  -    rev = "3d66e3747d22a77b24b119eb66e9d574ed99f86c";
  -    date = "2016-01-29";
  +    rev = "83f7d658ac219335d42f7ec4397a76e35ca7f835";
  +    date = "2016-02-05";
       owner  = "miekg";
       repo   = "dns";
  -    sha256 = "0igr7bxx77ilzd9fnc57vnpdcf33gs8ywpm5hcv2r9z5ck8nwphx";
  +    sha256 = "0rvvm0c84mw77bd95a06cpqn289qiim88iw38qhy8fvlnd9plpd7";
     };
   
     docopt-go = buildFromGitHub {
  
positive.code:   };
  
    httprouter = buildFromGitHub {
      rev = "abb0dc9f755ff0a9d818db28d9d8b9810066e2b5";
      owner  = "julienschmidt";
      repo   = "httprouter";
      sha256 = "0dx0a6g28ii6w1j2c3k7z091r6bz7f8cc0zcmgqf2n6gvpb50amh";
    };
  
    hugo = buildFromGitHub {
  
negative.code:   };
  
    go-dockerclient = buildFromGitHub {
      date = "2016-02-05";
      rev = "0099401a7342ad77e71ca9f9a57c5e72fb80f6b2";
      owner = "fsouza";
      repo = "go-dockerclient";
      sha256 = "0s11zg4028gysgxffbwx7z7zp0ayvbvjwmxy332ay23pk2bbj55p";
    };
  
    go-etcd = buildFromGitHub {
  