these 2 derivations will be built:
  /nix/store/drn32wws5kx2qc050dpli8pdkxnkxbrh-nixos-test-driver-pgsodium.drv
  /nix/store/5z3x8bm171srlq9drs77wc3kq9kf1vfb-vm-test-run-pgsodium.drv