these 2 derivations will be built:
  /nix/store/b88dfw6pl3hzx9ikm2vc63gi9wqq8xif-iets-0.1.0.drv
  /nix/store/rx4kf5fxh51cv35kxqx1ri0jzyh4ywl0-iets-linttest.drv