this derivation will be built:
  /nix/store/sb4mfpm7na12dvaxn3a45i61fzvbhjan-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/sb4mfpm7na12dvaxn3a45i61fzvbhjan-bcachefs-module-7.0.0-31-generic.drv'...