these 3 derivations will be built:
  /nix/store/gy1jvn7hfwv53zx3dd799z0ywmrlx7l1-treefmt.toml.drv
  /nix/store/xdis22bdhxl203wi7kd1c3n5wnfp77ka-treefmt.drv
  /nix/store/wsybq2d3aq9q4cbblb0jg2ggzaqhl9wd-treefmt-check.drv