these 2 derivations will be built:
  /nix/store/38gc1x547pm1nnn7cdsq9921rvzg0y95-nixos-test-driver-pgsodium.drv
  /nix/store/52vr9mrbpdz1rm68xz7acgiv1x6dvgw4-vm-test-run-pgsodium.drv