these 6 derivations will be built:
  /nix/store/s58yzpkawp2jkwj2x6jjfds2gf6vmz0r-iets-0.1.0.drv
  /nix/store/n15v56iz4ynapdxs4k5qzqzzkkcbdmcz-closure-info.drv
  /nix/store/89wpif487rinjw7rmn30ryyl12vmjyq0-test-script.drv
  /nix/store/7mz6i2vb2v9bajlh0smcjq4may3jg4z1-driverConfiguration.json.drv
  /nix/store/albb4s2idg8n8h5qrz7j4sxd2ism8aqp-nixos-test-driver-iets-cachetest.drv
  /nix/store/a5i14x28xs1r29jsd0ggjj0l8p9sk5nf-container-test-run-iets-cachetest.drv