these 3 derivations will be built:
  /nix/store/3vbxbh7j5d8vdqghp9k0h7233i5n7l17-treefmt.toml.drv
  /nix/store/78crqnrx1fpgyj4ysiw201rk3acv1gs1-treefmt.drv
  /nix/store/0zz9s3d1mamjag9wwkph3514zycvcxk0-treefmt-check.drv