these 6 derivations will be built:
  /nix/store/6f3sxpl6khqbhpblv4llhbl8cg981hgp-iets-0.1.0.drv
  /nix/store/qimwnxq026z2g72slmkjhnz488q5y6g8-closure-info.drv
  /nix/store/xra3ry8gxcwm6pyasigh8lhq90rjav8f-test-script.drv
  /nix/store/mi1dszzyd3hm32f3lygisq2xxns5rgr1-driverConfiguration.json.drv
  /nix/store/f185lca328vgks710nzmn6369r9baf0f-nixos-test-driver-iets-cachetest.drv
  /nix/store/z70q6lcblffm3a88i8raz78x0n7hd1qx-container-test-run-iets-cachetest.drv