these 3 derivations will be built:
  /nix/store/16xragab9y0qf7whvd1zdh1fwxcgy078-treefmt.toml.drv
  /nix/store/vkn6x68v4j7n5dj748x9la5gz74f57rr-treefmt.drv
  /nix/store/5vjd6l6ksfd164y37mqm1j05pmhpjziv-treefmt-check.drv