these 3 derivations will be built:
  /nix/store/hg353l0kxckq5wivng9zd9cg2cvax5j8-treefmt.toml.drv
  /nix/store/ivfpbzqhgz8kpc648pi0y4k86zrrnsbp-treefmt.drv
  /nix/store/9g8cn2vdraahj381a9vsfn1qawb21jb8-treefmt-check.drv