anchor.diff:    stage1Flavours = [ "coreos" "fly" ];
   
   in stdenv.mkDerivation rec {
  -  version = "1.9.1";
  +  version = "1.10.1";
     name = "rkt-${version}";
     BUILDDIR="build-${name}";
   
  
positive.code:       rev = "v${version}";
        owner = "coreos";
        repo = "rkt";
        sha256 = "094pqxcn91g1s3f0ly3z2lb11s4q3dn99h8cr7lqalkd0gj9l4xg";
    };
  
    stage1BaseImage = fetchurl {
  
negative.code: 
    installPhase = ''
      mkdir -p $out/bin
      cp -Rv $BUILDDIR/target/bin/* $out/bin
      wrapProgram $out/bin/rkt \
        --prefix LD_LIBRARY_PATH : ${systemd}/lib \
        --prefix PATH : ${iptables}/bin
  