these 6 derivations will be built:
  /nix/store/031gw4y07xax5i5phzzjg7m3scpkl5bj-iets-0.1.0.drv
  /nix/store/clqri1i9m6r8jf1gfv2l8s0r6hx41y9b-closure-info.drv
  /nix/store/hw0fcfsaibwyjmmp5ap0x5ln07458qj2-test-script.drv
  /nix/store/zadzj21v1jhn6k98v4fqxn0hlkp4avhx-driverConfiguration.json.drv
  /nix/store/jbimqil6pm5lsb57k51m8cf33zym9isr-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/4va39zqkq221fgyi1qk1w9m859wf0yp8-container-test-run-iets-grpc-e2e.drv