these 6 derivations will be built:
  /nix/store/2n8yfg76d0n6bp24db6phlkxgphys39f-iets-0.1.0.drv
  /nix/store/m2prl92gskqfyapn0shy5q50rd8nip83-closure-info.drv
  /nix/store/wv34af17sm7crjnhph3x9n0fjrhsyzj6-test-script.drv
  /nix/store/0ihzlh64fv7g9l471vbhlvsygbdr483b-driverConfiguration.json.drv
  /nix/store/y91zl6pdmdly3kpia45x4qdvi9b36spa-nixos-test-driver-iets-cachetest.drv
  /nix/store/8s30gfl9k9bjg1104qpzgs4d19wf6jvc-container-test-run-iets-cachetest.drv