these 3 derivations will be built:
  /nix/store/b6wlawnicgx81sgczz1n3pv3s0c1mkvp-treefmt.toml.drv
  /nix/store/v4rv2rzajv4lyrlsp97v67m6hpx8aw0g-treefmt.drv
  /nix/store/0mp0ylxi7xpx4mw2g5fmifpxyffdiwx6-treefmt-check.drv