this derivation will be built:
  /nix/store/dxk6n9z4v2adm9kb9xicyxrwff2ikd63-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/dxk6n9z4v2adm9kb9xicyxrwff2ikd63-bcachefs-module-7.0.0-31-generic.drv'...