these 6 derivations will be built:
  /nix/store/nrfrlqjdgbkkhflasmnc83kcpyryqzyr-iets-0.1.0.drv
  /nix/store/2z1ls6lvhc15wnjzpgq8qdxzf9c9rywr-closure-info.drv
  /nix/store/c232ph1bdapj5qa60bv7bhr3qpl3520z-test-script.drv
  /nix/store/a1h39r1wavwfms5063cg63bbg2lk3b6i-driverConfiguration.json.drv
  /nix/store/pnb1isi6yq2f6n6k3a0pbm5rbn58w9iq-nixos-test-driver-iets-cachetest.drv
  /nix/store/nz3k2aldv3lz2hcvzp7d1gn5pc5zr612-container-test-run-iets-cachetest.drv