these 6 derivations will be built:
  /nix/store/1piifx0sj5n8dkg837j96rbdgzq1cpqf-iets-0.1.0.drv
  /nix/store/2m2z3qjjr2y12vdc5vlc4gmafmm217ps-closure-info.drv
  /nix/store/djby6in7xarn63pfgia60zifyzm43y5c-test-script.drv
  /nix/store/ykj0fw13wihnznpc7bbw50f9c04xdhkw-driverConfiguration.json.drv
  /nix/store/jxyzjxgx89wkn89qapll1n6nciyj53b1-nixos-test-driver-iets-cachetest.drv
  /nix/store/nz1s95s59lliz7kfdiqmn258h9hy3v3f-container-test-run-iets-cachetest.drv