these 2 derivations will be built:
  /nix/store/48bpip3mv996dvaxcb70nz8fsba3kx6b-nixos-test-driver-plv8.drv
  /nix/store/v4xrbxxqlr6q341v7wsfqr4k1zb4gn4q-vm-test-run-plv8.drv