these 4 derivations will be built:
  /nix/store/6gd9isgaq43jr7klrraxaz24jx1q04iw-test-script.drv
  /nix/store/yp76lnw0ilbq2i0g12iiajswdgfzk72z-driverConfiguration.json.drv
  /nix/store/nwy7104flna78lfbk60fjx2yh92gharn-nixos-test-driver-pgrouting.drv
  /nix/store/rm9bn0lw37zdclr06376sfgzg6gydfh1-vm-test-run-pgrouting.drv