these 2 derivations will be built:
  /nix/store/0p2879nxp1r6gj17769wgjmzpq7j09cc-nixos-test-driver-flakelet-relay.drv
  /nix/store/7mj170r90mldssnblh3lvcdnavysw3gj-container-test-run-flakelet-relay.drv