anchor.diff:  
     appengine = buildFromGitHub {
       version = 2;
  -    rev = "78199dcb0669fc381c22e919e1e97eba879e8f60";
  -    date = "2016-09-14";
  +    rev = "v1.0.0";
       owner = "golang";
       repo = "appengine";
  -    sha256 = "191df5f9lqxkijfwnf74wqjyns5vkhjdz0531lc8k3nidfcjykpr";
  +    sha256 = "0z0vrrwh4f4ji2v3sv40db7m5l31mw08mjwlgzibf0nfjaganwgl";
       goPackagePath = "google.golang.org/appengine";
       propagatedBuildInputs = [
         protobuf
  
positive.code:   };
  
    vault = buildFromGitHub {
      version = 1;
      rev = "v0.6.1";
      owner = "hashicorp";
      repo = "vault";
      sha256 = "0w9rary7m3nqwgp8xp3iadwprpgwgzdngsya8fv3k3iqyakvchvz";
  
      buildInputs = [
        azure-sdk-for-go
  
negative.code: 
    go-github = buildFromGitHub {
      version = 2;
      date = "2016-09-22";
      rev = "3e246d29992beb5a5d2fc253adebea86997c45b0";
      owner = "google";
      repo = "go-github";
      sha256 = "1gnm1s7dni113v6w9y39njd7lch5z0qgn0hr8h62fzambhz9s4gg";
      buildInputs = [ oauth2 ];
      propagatedBuildInputs = [ go-querystring ];
    };
  