these 4 derivations will be built:
  /nix/store/4kicqi9913lv63pmycc8frpr9nn45zzs-test-script.drv
  /nix/store/bbm2m5czzaaivh4d0ccarr278yajdiwb-driverConfiguration.json.drv
  /nix/store/r67pn17j2j78wj4bi7r4d54as4ccm6xs-nixos-test-driver-pgtap.drv
  /nix/store/g4742li79pnx9dx9bfllm1daffyhgnss-vm-test-run-pgtap.drv