these 3 derivations will be built:
  /nix/store/7a9gh32763lgdgr97y0agp423m8l9ppv-treefmt.toml.drv
  /nix/store/xf92vnwy714r2m8ppjnrrbjqbdw5jrbj-treefmt.drv
  /nix/store/zpw7zifdghscpmhrzhmvqr6nn5z33mrr-treefmt-check.drv