anchor.diff:    };
   
     tools = buildFromGitHub {
  -    rev = "ac02106e04bdb66a2db0413d931012bea165d7e0";
  -    date = "2016-02-22";
  +    rev = "459f0c0f7388988791c04ff54887c6c0d193e4d2";
  +    date = "2016-03-07";
       owner = "golang";
       repo = "tools";
  -    sha256 = "0gkazww2ka97pb326iblj8dhw02i122karg43m8j23s6xgbp9rkj";
  +    sha256 = "049sg4mrvnwaq1ikj16rh9znm3h0dr2650i16741q3li0ksi0dzl";
       goPackagePath = "golang.org/x/tools";
       goPackageAliases = [ "code.google.com/p/go.tools" ];
   
  
positive.code: 
    syncthing = buildFromGitHub rec {
      version = "0.12.16";
      rev = "v0.12.19";
      owner = "syncthing";
      repo = "syncthing";
      sha256 = "11ij8whaqrrzriavxa08jpsmbd1zkc2qxsni1nbgszw2hymmv38g";
      buildFlags = [ "-tags noupgrade,release" ];
      buildInputs = [
        go-lz4 du luhn xdr snappy ratelimit osext
  
negative.code:   };
  
    gomega = buildFromGitHub {
      rev = "7ce781ea776b2fd506491011353bded2e40c8467";
      owner  = "onsi";
      repo   = "gomega";
      sha256 = "01876g5h9mj8dv07pl4c16ymffdvkkc8jw5qp2j0i40bm95zgnl3";
      buildInputs = [ protobuf ];
    };
  
  