these 3 derivations will be built:
  /nix/store/v7ixibpj30j4l8yzxqav6annkg9dklfj-driverConfiguration.json.drv
  /nix/store/1cz8kfhzxn1w14z2vvbak7hf2qi99lz7-nixos-test-driver-systemd-boot-xbootldr.drv
  /nix/store/5b3pd575ii0syg6dcjcdw7lbsscnbc2x-vm-test-run-systemd-boot-xbootldr.drv