these 3 derivations will be built:
  /nix/store/za4mydf1g466n5sydqv93iyd2khzms1q-treefmt.toml.drv
  /nix/store/0a8lmwks77gd11blkljzi3q2qs8jyv6f-treefmt.drv
  /nix/store/rzcv52pdc2sxl1lbdqfbkqdpk6d3jsnb-treefmt-check.drv