these 6 derivations will be built:
  /nix/store/l244631y2lvn93jba0xldzb9js9zxl0j-iets-0.1.0.drv
  /nix/store/qcab46bdj9mycd5gjl4g8d3wfnwllb99-closure-info.drv
  /nix/store/irwqhr8ca8977clwbpkgffz254d1wkq6-test-script.drv
  /nix/store/wrznpilssmpz3h7jk9anzw569mj6da7l-driverConfiguration.json.drv
  /nix/store/arcxwb1rg3fbqc9bs1rhbryinbpdd575-nixos-test-driver-iets-cachetest.drv
  /nix/store/rvsrs3fl249mx0vkm584bx2i732pmgd3-container-test-run-iets-cachetest.drv