this derivation will be built:
  /nix/store/6qfjz54gxh8457s1rl6kakilnvg200vn-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/6qfjz54gxh8457s1rl6kakilnvg200vn-bcachefs-module-7.0.0-28-generic.drv'...