these 3 derivations will be built:
  /nix/store/yvyv90kzs9ncra858qa3846wl9k57p5v-treefmt.toml.drv
  /nix/store/9dn0jlsj8k7pwwanif81b9x5x9s7swr6-treefmt.drv
  /nix/store/lwx0a6z9h02cl30lwi8h3y8anpklk5q4-treefmt-check.drv