this derivation will be built: /nix/store/0ahpi8dvk0c5hd1h3nyy38y31gnrb9iq-bcachefs-module-7.0.0-38-generic.drv building '/nix/store/0ahpi8dvk0c5hd1h3nyy38y31gnrb9iq-bcachefs-module-7.0.0-38-generic.drv'...