this derivation will be built:
  /nix/store/vvrz490v3wqmv3rfw0qg5zhjf276zbym-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/vvrz490v3wqmv3rfw0qg5zhjf276zbym-bcachefs-module-7.0.0-29-generic.drv'...