these 2 derivations will be built:
  /nix/store/9w2vm2r484f4zkkjz041vvahv1918jhd-nixos-test-driver-pgsodium.drv
  /nix/store/rfg1cikpidq5n6h8wlzs46254am6zyd0-vm-test-run-pgsodium.drv