these 2 derivations will be built:
  /nix/store/ylf265zpbgk16qb4zd7jyn14nz5948li-nixos-test-driver-pgsodium.drv
  /nix/store/3k0hik6bixf1pic1bn38nzifwydawc5n-vm-test-run-pgsodium.drv