these 2 derivations will be built:
  /nix/store/bnxd9r40qri7jln8mbx0dhxv3djwlqvv-nixos-test-driver-pgsodium.drv
  /nix/store/rmnrzrj3ppp3yh3mqcd2yvsnscgdij71-vm-test-run-pgsodium.drv