this derivation will be built:
  /nix/store/h546vrvkci4ah5m3nxs48v1wk9xqg4q4-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/h546vrvkci4ah5m3nxs48v1wk9xqg4q4-bcachefs-module-7.0.0-39-generic.drv'...