these 3 derivations will be built:
  /nix/store/v1r8cd02szc8hdmyhwl0v12jgx74wa8x-treefmt.toml.drv
  /nix/store/0p2956f6s9hzvvd1cyr3q92d84578bz1-treefmt.drv
  /nix/store/i74q9k2lhzwhnf6dywdwcidab1j1ndnl-treefmt-check.drv