this derivation will be built: /nix/store/f6diq5gq3hrkn49bq1yxhd40iwgbx5hx-bcachefs-module-7.0.0-38-generic.drv building '/nix/store/f6diq5gq3hrkn49bq1yxhd40iwgbx5hx-bcachefs-module-7.0.0-38-generic.drv'...