these 6 derivations will be built:
  /nix/store/7sgkwrpqdi0v7qid9pixg5gx02y1jzb9-iets-0.1.0.drv
  /nix/store/jfap0k7z085snkrhz5dl6vgszdciafln-closure-info.drv
  /nix/store/glsclhi0qjxh73k0ag63bxk6nw498np4-test-script.drv
  /nix/store/a1y263wkvwpm7sz943yzqxmaw46clr5l-driverConfiguration.json.drv
  /nix/store/xcc213v8caa8qgwvh5w6cad7fdqpg0cv-nixos-test-driver-iets-cachetest.drv
  /nix/store/vmcf02w629pmk4wzg568fgk395nb2zsg-container-test-run-iets-cachetest.drv