this derivation will be built:
  /nix/store/r9rs4v3hni4c5db5c0b4455nr6vabl9a-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/r9rs4v3hni4c5db5c0b4455nr6vabl9a-bcachefs-module-7.0.0-39-generic.drv'...