241         if let Ok(guard) = self.outcome.try_lock() {  in get_pruning_info()
242             match *guard {  in get_pruning_info()
267             Ok(guard) => match *guard {  in prune()
268                 Outcome::Unknown => guard,  in prune()
323         let guard = self.outcome.lock().expect("In check_active.");  in check_active()  localVariable
324         match *guard {  in check_active()
325             Outcome::Unknown => Ok(guard),  in check_active()
327                 .context(ks_err!("Call on finalized operation with outcome: {:?}.", *guard)),  in check_active()
458         let guard = self.outcome.lock().expect("In drop.");  in drop()  localVariable
463             &guard,  in drop()
466         if let Outcome::Unknown = *guard {  in drop()
467             drop(guard);  in drop()