these 4 derivations will be built:
  /nix/store/fsg85q9jljana9zyazgshn2l110j9519-test-script.drv
  /nix/store/qvi3agbdivb36s3gqdprcdjhs9whk645-driverConfiguration.json.drv
  /nix/store/x0k689rqjsm520x9qwllgijcnpv7rbgx-nixos-test-driver-horae-e2e.drv
  /nix/store/iw2w0r9gda1qzw7ryb6xz4ab4ddyi23q-vm-test-run-horae-e2e.drv