this derivation will be built:
  /nix/store/rj77v2m9dzl1fmxhms9pxx3wim19q3qx-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/rj77v2m9dzl1fmxhms9pxx3wim19q3qx-bcachefs-module-7.0.0-31-generic.drv'...