these 6 derivations will be built:
  /nix/store/qfmpks8kb2zm5yagr2pl8if3q00pic6w-iets-0.1.0.drv
  /nix/store/6r6v583n2jj8dkhz71fw4rl8kc6qkqh5-closure-info.drv
  /nix/store/zghsqzj4xhl5y60gamazh76zx3rss37w-test-script.drv
  /nix/store/d5xawas5m4y14zzm33xqh24w9k622xxf-driverConfiguration.json.drv
  /nix/store/swbjyrizpdb217qczk79y0l5hagrkw54-nixos-test-driver-iets-cachetest.drv
  /nix/store/bdj7146gnd54b0bqhzp8ckdngs3f8f2h-container-test-run-iets-cachetest.drv