anchor.diff:    };
   
     oauth2 = buildFromGitHub {
  -    rev = "2baa8a1b9338cf13d9eeb27696d761155fa480be";
  -    date = "2015-12-04";
  +    rev = "8a57ed94ffd43444c0879fe75701732a38afc985";
  +    date = "2015-12-29";
       owner = "golang";
       repo = "oauth2";
  -    sha256 = "1b34m7k4q667vswjgr53sgg4nhn4cbnbp0yya55c2v2pr5r3qym5";
  +    sha256 = "10pxnbsy1lnx7a1x6g3cna5gdm11aal1r446dpmpgj94xiw96mxv";
       goPackagePath = "golang.org/x/oauth2";
       goPackageAliases = [ "github.com/golang/oauth2" ];
       propagatedBuildInputs = [ net gcloud-golang-compute-metadata ];
  
positive.code:   };
  
    glog = buildFromGitHub {
      rev    = "fca8c8854093a154ff1eb580aae10276ad6b1b5f";
      date   = "2015-07-31";
      owner  = "golang";
      repo   = "glog";
      sha256 = "1nr2q0vas0a2f395f4shjxqpas18mjsf8yhgndsav7svngpbbpg8";
    };
  
    codesearch = buildFromGitHub {
  
negative.code:   };
  
    groupcache = buildFromGitHub {
      date = "2016-01-27";
      rev = "d995f8a6686adff0b1f2f20c52ef4114981d2006";
      owner  = "golang";
      repo   = "groupcache";
      sha256 = "11qqsm196v19wlaq39cchcvsf8vrdzd43rfsp39qpf253slc6jl1";
      buildInputs = [ protobuf ];
    };
  
    grpc = buildFromGitHub {
      rev = "66b94b9f6b45652d6824be23517979d31f27cd15";
      date = "2016-02-03";
      owner = "grpc";
      repo = "grpc-go";
      sha256 = "093sh1ic6qj8mn8nd91rk5h5gs2qkr5dk9ix09428niqxgm5fy0s";
      goPackagePath = "google.golang.org/grpc";
      goPackageAliases = [ "github.com/grpc/grpc-go" ];
      propagatedBuildInputs = [ http2 net protobuf oauth2 glog ];
      excludedPackages = "\\(test\\|benchmark\\)";
    };
  
  