these 6 derivations will be built:
  /nix/store/sh16gh8pp92zfwqmsqfcvla2vqsz5das-iets-0.1.0.drv
  /nix/store/pbjyckm2gjba6r3ihsz9hlaabjb04r9d-closure-info.drv
  /nix/store/ryxwwa4p7jdbvgf5059cfiz12yqn761y-test-script.drv
  /nix/store/j5l5n0b2dw05njsciay7sz6gl1akziz1-driverConfiguration.json.drv
  /nix/store/g939hq8s75w5vczvqw31a9szynmksf7z-nixos-test-driver-iets-evaljobs-flags.drv
  /nix/store/f95mj9kwzyjrhjvmkzv458zac8j875g8-container-test-run-iets-evaljobs-flags.drv