this derivation will be built: /nix/store/7vnppph6q7bib7yfrwhwsj6ysw584abc-bcachefs-module-7.0.0-38-generic.drv building '/nix/store/7vnppph6q7bib7yfrwhwsj6ysw584abc-bcachefs-module-7.0.0-38-generic.drv'...