these 6 derivations will be built:
  /nix/store/7aizim903q93kmscya093w4i9yhyafp5-iets-0.1.0.drv
  /nix/store/f15ypbfpwaws3m5lpvbdk0v5gkxwrfzy-closure-info.drv
  /nix/store/k4khfff2l0c7shsgv4061jq8nrk43gfb-test-script.drv
  /nix/store/cln4fl1p22253hamgk7ljmzkklnviimm-driverConfiguration.json.drv
  /nix/store/lban1cmakhvv011i38ghphjs6aqh8m2d-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/l3xwjcdm0xr8asr8s2sm850imfiiqhw9-container-test-run-iets-grpc-e2e.drv