this derivation will be built:
  /nix/store/xkrlxf70caf5m90i36l3nwj62avmwjk7-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/xkrlxf70caf5m90i36l3nwj62avmwjk7-bcachefs-module-7.0.0-29-generic.drv'...