these 2 derivations will be built:
  /nix/store/3265k671rx0qjmhkvmbqnr82p0cpip0c-nixos-test-driver-pgsodium.drv
  /nix/store/wbcv0a4ai5xkdvj98vs928ifq6f0hg90-vm-test-run-pgsodium.drv