these 4 derivations will be built:
  /nix/store/wdym4jxdjsbywhcpaap7zx2sgkgawp6g-test-script.drv
  /nix/store/l1w81nv5hbwplq445nc484cxf28lgsy0-driverConfiguration.json.drv
  /nix/store/6viny7h77wxsilipchnhhsn92sir8n95-nixos-test-driver-iets-cachetest.drv
  /nix/store/m42as5cx9g4gimyhjjasn0p4gvpcbgwq-container-test-run-iets-cachetest.drv