anchor.diff:          LWP
           LWPProtocolHttps
           NetAmazonS3
  +        NetPrometheus
           NetStatsd
           PadWalker
           Readonly
  
positive.code:   };
  in stdenv.mkDerivation rec {
    pname = "hydra";
    version = "2019-08-30";
  
    inherit stdenv;
  
    src = fetchFromGitHub {
      owner = "NixOS";
      repo = pname;
      rev = "242b8b7a314759ed33f69205d26a1b7c337511e0";
      sha256 = "167ijcf9qdm10kjvqax3hcvs5mpa4mx2y2i9idwwc6xfvn8fhs84";
    };
  
    buildInputs =
  
negative.code:         CatalystPluginSessionStateCookie
          CatalystPluginSessionStoreFastMmap
          CatalystPluginStackTrace
          CatalystPluginUnicodeEncoding
          CatalystTraitForRequestProxyBase
          CatalystViewDownload
          CatalystViewJSON
  