these 3 derivations will be built:
  /nix/store/3fxvy73sv0s2wr9naqjyf98zl0vn7wqk-source.drv
  /nix/store/6r3nx0rlzinb3986006zjs80291y9rs6-plannotator-0.28.42.drv
  /nix/store/3m2xld1vc8swps2znpccnyirqzflfnav-check-plannotator.drv