these 6 derivations will be built:
  /nix/store/z1ck2p136v0iq7x76b5wfq3q7pgq9sns-iets-0.1.0.drv
  /nix/store/4jgdcnqqia1n0vldkxgsnajylv92ma7v-closure-info.drv
  /nix/store/cwpkfvdprfm6bah89k7bib8ldv6rll0d-test-script.drv
  /nix/store/jyfc7wxp3vp3sz4gxism0f78bcs7w0l0-driverConfiguration.json.drv
  /nix/store/ww9l37z0r5v1widrh9w5b52s1zq5z16k-nixos-test-driver-iets-flaketest.drv
  /nix/store/px31rz6dsy3ci1jb4cdp11lqjmni1p3v-container-test-run-iets-flaketest.drv