these 6 derivations will be built:
  /nix/store/jihiacxw39ziis07i30ira656bpg60wa-iets-0.1.0.drv
  /nix/store/kz4a2i958wbw275x07196h0a4dfgry3q-closure-info.drv
  /nix/store/r2cmdsdsf73wdi17l6ldxsmha76nracp-test-script.drv
  /nix/store/ffkwm5a1m01iydc6xlhbsnd82hgs5ksb-driverConfiguration.json.drv
  /nix/store/3y6sds0g6p5gjgi1vqb31l8wn4i7aa86-nixos-test-driver-iets-cachetest.drv
  /nix/store/c4nwr0sqa5ymnlv30lw5zj481265w5gw-container-test-run-iets-cachetest.drv