these 4 derivations will be built:
  /nix/store/8f4j0yihrhpxpicbjmqbyalr1krffghb-test-script.drv
  /nix/store/8q0khkq7wi7920yc242lfypwza1l9sza-driverConfiguration.json.drv
  /nix/store/77klmhn2plm36wymh0y6add4dvh6qci5-nixos-test-driver-plpgsql_check.drv
  /nix/store/77cvlh7f49rs7xma38m2y32mi3mnd1kf-vm-test-run-plpgsql_check.drv