these 6 derivations will be built:
  /nix/store/wlviyjky39w4k01i7b3gr5s5zqzrj4dn-iets-0.1.0.drv
  /nix/store/73ijnk57mf8n44qlj7ql7h42r20d1c5w-closure-info.drv
  /nix/store/5g68yj6ydkir5ap8rlgfk1qmczx7shgh-test-script.drv
  /nix/store/s1s54hqrg8hkzzfji3rmazw500ib201l-driverConfiguration.json.drv
  /nix/store/x3xq0jlai29smvqlm3cvg3m9qi2fy0p9-nixos-test-driver-iets-cachetest.drv
  /nix/store/p6wv5js0f704h4w1ivpmwlbzx1s4a4g5-container-test-run-iets-cachetest.drv