these 6 derivations will be built:
  /nix/store/6bq9wipnzz5pria0jaqrcfzvk6ga8j6p-iets-0.1.0.drv
  /nix/store/8aqqwhw7zndmssacg5x7cylyh86ycdr6-closure-info.drv
  /nix/store/31ll7vkaq5szyssaq8pyyfhfjszwv7ra-test-script.drv
  /nix/store/la5i3psja5ap8qws4xvlh1znbwmf9iva-driverConfiguration.json.drv
  /nix/store/vfy9knyb50myww6srbsh0mrx6wn2s2l2-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/lkcx0sy0flwsxqhvi9nbriirfbkdvhir-container-test-run-iets-grpc-e2e.drv