these 2 derivations will be built:
  /nix/store/3x3aysx4r98p8apc1y5a7wmc5c5yws7c-nixos-test-driver-pgsodium.drv
  /nix/store/imr9hbkbqh2lsys6h8h3gska23q7dqx1-vm-test-run-pgsodium.drv