these 2 derivations will be built:
  /nix/store/9ix76ccck5vlw63szzkcv966nnmw8qwr-nixos-test-driver-pgsodium.drv
  /nix/store/bwiq2w01m1bvkr2p4jzpvfklfvncqrs3-vm-test-run-pgsodium.drv