these 6 derivations will be built:
  /nix/store/7pr82zr78p3nmsxsk2f9mjrv1rdc652f-iets-0.1.0.drv
  /nix/store/zfw9wq8j3s6ji356wamzfqd74g25sgpy-closure-info.drv
  /nix/store/p5swjak7pgr3znbs6q1nqiiar3i2vsih-test-script.drv
  /nix/store/8dqw5yd7bx8j48ihbrfaxhizb4ycl157-driverConfiguration.json.drv
  /nix/store/ilbba9956ghbvs9axx1nki31rc20pyxf-nixos-test-driver-iets-cachetest.drv
  /nix/store/kvyy03h59mxcb4bpyydrvw4b1g6yrafl-container-test-run-iets-cachetest.drv