these 2 derivations will be built:
  /nix/store/pdndzx3i9lh5y4a1mlfz7r83ljmafnyz-iets-0.1.0.drv
  /nix/store/3j23l5km5qscq6bh2mcg5yxqmxn04h7d-iets-linttest.drv