these 6 derivations will be built:
  /nix/store/z1ck2p136v0iq7x76b5wfq3q7pgq9sns-iets-0.1.0.drv
  /nix/store/4jgdcnqqia1n0vldkxgsnajylv92ma7v-closure-info.drv
  /nix/store/sm7b4zr76wfi02bg5lnp5kdkimm2r17j-test-script.drv
  /nix/store/idx8p0fyapp42hz9xd5kk0q7080b0y6y-driverConfiguration.json.drv
  /nix/store/xgad7p8jbbxzz5wvz0i3czbwvyf1sp1w-nixos-test-driver-iets-cachetest.drv
  /nix/store/gwwv3svfmfbc3nhrq245j8gvy9lriflc-container-test-run-iets-cachetest.drv