759             assert!(matches!(host_state, HostTaskState::CalleeStarted));  in poll_and_block()
760             *host_state = HostTaskState::CalleeFinished(Box::new(result));  in poll_and_block()
813     match mem::replace(host_state, HostTaskState::CalleeDone { cancelled: false }) {  in poll_and_block()
814         HostTaskState::CalleeFinished(result) => Ok(match result.downcast() {  in poll_and_block()
1556         let task = state.push(HostTask::new(caller, HostTaskState::CalleeStarted))?;  in host_task_create()
2811             assert!(matches!(state, HostTaskState::CalleeStarted));  in first_poll()
2812             *state = HostTaskState::CalleeRunning(join_handle);  in first_poll()
2869                     HostTaskState::CalleeDone { .. } => {}  in first_poll()
2872                     other => *other = HostTaskState::CalleeDone { cancelled: false },  in first_poll()
3123                 HostTaskState::CalleeRunning(_) => bail!(Trap::SubtaskDropNotResolved),  in subtask_drop()
3124                 HostTaskState::CalleeDone { .. } => {}  in subtask_drop()
3125                 HostTaskState::CalleeStarted | HostTaskState::CalleeFinished(_) => {  in subtask_drop()
3603             match mem::replace(state, HostTaskState::CalleeDone { cancelled: true }) {  in subtask_cancel()
3610                 HostTaskState::CalleeRunning(handle) => {  in subtask_cancel()
3617                 HostTaskState::CalleeDone { cancelled } => {  in subtask_cancel()
3629                 HostTaskState::CalleeStarted | HostTaskState::CalleeFinished(_) => {  in subtask_cancel()
4248     state: HostTaskState,
4251 enum HostTaskState {  enum
4275     fn new(caller: QualifiedThreadId, state: HostTaskState) -> Self {  in new()