these 2 derivations will be built:
  /nix/store/cbifnp5s9fzc0a85pyzgl7hqgmzw6fkp-iets-0.1.0.drv
  /nix/store/7fzc888i5j4nysmd05kq479bwdgcpvjg-iets-linttest.drv