these 6 derivations will be built:
  /nix/store/aqy3j68hvrhk4ikywr721fp2yz8sn9qb-iets-0.1.0.drv
  /nix/store/dlgp3ppqrvbpv7l4bz3y6nqxwfbpiyjl-closure-info.drv
  /nix/store/9hx8w9yadg0x5i7lf6137m70vgzqk4il-test-script.drv
  /nix/store/9x0fm42qbyaizw82w9rgbyxwsjr930ig-driverConfiguration.json.drv
  /nix/store/w8yxb22q3nq3fjz32s7x4xli9cm53wrr-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/vkj6xj4kqz5q4s0pz17y5wigjqahrw3n-container-test-run-iets-grpc-e2e.drv