this derivation will be built:
  /nix/store/l7myg2932c82fyqgnnvyiz5h0y760aqx-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/l7myg2932c82fyqgnnvyiz5h0y760aqx-bcachefs-module-7.0.0-39-generic.drv'...