these 3 derivations will be built:
  /nix/store/ii39kqix5fcmspwgr27b6b80rj5103lz-treefmt.toml.drv
  /nix/store/cd918c89irxxkbnnzvywbl0dyisii32f-treefmt.drv
  /nix/store/5naxkzqfa57xp45vadssfp5dpl0bcflg-treefmt-check.drv