anchor.diff:          ''
         else
           test // {
  -          inherit nodes driver test;
  +          inherit nodes test;
  +          driver = driver testDriverInteractive;
           };
   
     runInMachine =
  
positive.code:       # Generate convenience wrappers for running the test driver
        # interactively with the specified network, and for starting the
        # VMs from the command line.
        driver = let warn = if skipLint then lib.warn "Linting is disabled!" else lib.id; in warn (runCommand testDriverName
          { buildInputs = [ makeWrapper];
            testScript = testScript';
            preferLocalBuild = true;
  
negative.code:   inherit pkgs;
  
  
    mkTestDriver = let
      testDriverScript = ./test-driver/test-driver.py;
    in qemu_pkg: stdenv.mkDerivation {
      name = "nixos-test-driver";
  
      nativeBuildInputs = [ makeWrapper ];
  