these 2 derivations will be built:
  /nix/store/31qzxn9bw7gj7dz1y1m3c5b37rm1br6a-nixos-test-driver-pgsodium.drv
  /nix/store/d0805sf2172kz96hlbggfvspn6ryvcby-vm-test-run-pgsodium.drv