these 2 derivations will be built:
  /nix/store/2zqzj3p6r5a3a91p0hqhxnhpclcaqji3-nixos-test-driver-pg_stat_monitor.drv
  /nix/store/rb369vg454gw80b0p3qigv6j6ixpmiv2-vm-test-run-pg_stat_monitor.drv