anchor.diff:      version = 5;
       owner = "grafana";
       repo = "grafana";
  -    rev = "v5.0.1";
  -    sha256 = "02wxkh0injnc0xkq2pl65qpldg9bvf3j1bgpdh12gmdmrppmr7ra";
  +    rev = "v5.0.3";
  +    sha256 = "0fwfz2pir6a9lv8id5ixnr54yy46z7nn65bypri87vawlzicz96x";
       buildInputs = [
         amqp
         aws-sdk-go
  
positive.code:       yaml_v2
      ];
      meta.useUnstable = true;
      date = "2018-03-10";
      postPatch = ''
        rm cmd/gateway-{azure,s3}*.go
        sed -i 's,return newAzureLayer.*,break,' cmd/gateway-main.go
  
negative.code:     version = 5;
      owner = "libp2p";
      repo = "go-libp2p-circuit";
      date = "2018-03-15";
      rev = "6dc6e9b7982f4e7ecc9277008b071d697dd61adb";
      sha256 = "1l99nap8ms2dpy8025xrcykm0ydg1xxmcyfkfm3g4klhrq8gyk5q";
      propagatedBuildInputs = [
        go-addr-util
        go-log
  