186                 let r = self.dfs(entity.1, &mut visited, &mut result);  in topo_sort()  localVariable
187                 if r.is_err() {  in topo_sort()
188                     let err = r.unwrap_err();  in topo_sort()
221                     let r = self.dfs(&dep_entity, visited, result);  in dfs()  localVariable
222                     if r.is_err() {  in dfs()
223                         let mut err: DependencyCycleError = r.unwrap_err();  in dfs()
313         let r = scheduler.add_tasks(tasks);  in new()  localVariable
314         if r.is_err() {  in new()
315             error!("Error while adding tasks: {:?}", r);  in new()
316             return Err(r.err().unwrap());  in new()
419         let r = self.check_not_exists_dependency();  in run_with_topo_sort()  localVariable
420         if r.is_err() {  in run_with_topo_sort()
421             error!("Error while checking tasks: {:?}", r);  in run_with_topo_sort()
422             return r;  in run_with_topo_sort()
426         let r: Vec<Arc<SchedEntity>> = self.target.topo_sort();  in run_with_topo_sort()  localVariable
431         let count = r.len();  in run_with_topo_sort()
435             Self::build_install_daemon(action, dragonos_dir, id2entity, count, &r)  in run_with_topo_sort()
448         let mut r = self.target.entities();  in run_without_topo_sort()  localVariable
450             Self::clean_daemon(action, dragonos_dir, &mut r);  in run_without_topo_sort()
500         r: &Vec<Arc<SchedEntity>>,  in build_install_daemon()
505         for e in r.iter() {  in build_install_daemon()
553     pub fn clean_daemon(action: Action, dragonos_dir: PathBuf, r: &mut Vec<Arc<SchedEntity>>) {  in clean_daemon()
555         while !guard.queue().is_empty() && !r.is_empty() {  in clean_daemon()
556             guard.clean_task(action, dragonos_dir.clone(), r.pop().unwrap().clone());  in clean_daemon()