these 3 derivations will be built:
  /nix/store/yvyv90kzs9ncra858qa3846wl9k57p5v-treefmt.toml.drv
  /nix/store/9dn0jlsj8k7pwwanif81b9x5x9s7swr6-treefmt.drv
  /nix/store/34n428nj1b6hwdgwn4c9073jj74r708n-treefmt-check.drv