these 3 derivations will be built:
  /nix/store/ajidc9qgb9v5qipxxf0mbclf9b6xciqk-treefmt.toml.drv
  /nix/store/4x3avds4r67v6ffz29p0m7xr3h4k0dyz-treefmt-with-config-2.6.0.drv
  /nix/store/ywbqq91rpg7vwgl4w4pwhqz2yvhjkyla-treefmt-with-config-check.drv