anchor.diff:  
     libnetwork = buildFromGitHub {
       version = 5;
  -    rev = "20dff983b1207d927b321c829d9cd93c7b4f7e24";
  +    rev = "862df3a27a575defb3b9b16f92805b4798390870";
       owner = "docker";
       repo = "libnetwork";
  -    sha256 = "0hsmn3mk84vpvj0wnlwddzbfxw4nw4dgx3pn11543sza93zql8hi";
  -    date = "2018-01-11";
  +    sha256 = "1ps1y4h7mqlyzj5rvl12wznhr39dghihalnlp4qxsirkggcbnnwr";
  +    date = "2018-01-24";
       subPackages = [
         "datastore"
         "discoverapi"
  
positive.code:   };
  
    go-libp2p-interface-connmgr = buildFromGitHub {
      version = 3;
      owner = "libp2p";
      repo = "go-libp2p-interface-connmgr";
      date = "2017-12-05";
      rev = "43bac92c9f2ff6625c9a2b22d557e12a26232fdc";
      sha256 = "0yhkafbp7jdaxf70xcm3wymbcqgg1g6db5c4bvcyxaqbkc2lgb85";
      propagatedBuildInputs = [
        go-libp2p-net
        go-libp2p-peer
  
negative.code:   };
  
    opentracing-go = buildFromGitHub {
      version = 5;
      owner = "opentracing";
      repo = "opentracing-go";
      rev = "216894e5277dc6098f93ceca97beb6101610b418";
      sha256 = "1y8806yyj4gfcb1ma1xkmcwwca5aazdw10kq4q71qi5id9zvv9zd";
      goPackageAliases = [
        "github.com/frrist/opentracing-go"
      ];
      propagatedBuildInputs = [
        net
      ];
      date = "2018-01-12";
    };
  
    osext = buildFromGitHub {
  