these 2 derivations will be built:
  /nix/store/kgxf2k6pb8ilg0g9bv7jzq2bkw0kj2v5-iets-0.1.0.drv
  /nix/store/2rl7492k01m1rglzn5bql9f8crqb0lrd-iets-linttest.drv