these 3 derivations will be built:
  /nix/store/f3931bjwl0vzbxsy97v7sshi04g0c5kq-treefmt.toml.drv
  /nix/store/zkfns0cjghg67pmmfgfk7mqcdy9p9cda-treefmt.drv
  /nix/store/a79s0hn2k3nzd27dk06vimw6dk1f4lgd-treefmt-check.drv