anchor.diff:  
     go-github = buildFromGitHub {
       version = 5;
  -    date = "2017-12-29";
  -    rev = "fc3c57184028a80ff3979d912cdaf5f08887f98a";
  +    date = "2018-01-09";
  +    rev = "c988f775700b9ab14b5acb7502046fa341daf82d";
       owner = "google";
       repo = "go-github";
  -    sha256 = "1lwwcvkap0v0d0i2nhqahrib15mmapwln5n0xrcd57knnwm8cxxq";
  +    sha256 = "02pzwyj1053jbx9scs063jca38x3z9a9gwadx5ayd0zj7zv78xar";
       buildInputs = [
         appengine
         oauth2
  
positive.code:   };
  
    go-semver = buildFromGitHub {
      version = 3;
      rev = "1817cd4bea52af76542157eeabd74b057d1a199e";
      owner  = "coreos";
      repo   = "go-semver";
      sha256 = "0fkf0myxfwwwcngk7wl3yr593xyvx905ag1s4hfbxx0mzgn7zy9n";
      date = "2017-06-13";
    };
  
    go-shared = buildFromGitHub {
  
negative.code:       cni
      ];
      meta.useUnstable = true;
      date = "2018-01-10";
    };
  
    roaring = buildFromGitHub {
  