these 2 derivations will be built:
  /nix/store/b26h95g6m8a8yznvlfwfpcfdf0my583a-nixos-test-driver-pgjwt.drv
  /nix/store/xv5h1wb6j7jvgni5m10khrncvlnjb00n-vm-test-run-pgjwt.drv