these 3 derivations will be built:
  /nix/store/qgxvkr862xvnvxs52x4iwj14jk6mfigb-treefmt.toml.drv
  /nix/store/rcch8y5sdqz61r4cbwdx7q661sln858d-treefmt.drv
  /nix/store/axis31rxk0j2k2lgg6ag5j7a546p06s2-treefmt-check.drv