1 files changed, 3 insertions, 2 deletions
diff --git a/ecs/src/lock.rs b/ecs/src/lock.rs
index 77213c9..fbc6842 100644
--- a/ecs/src/lock.rs
+++ b/ecs/src/lock.rs
@@ -1,6 +1,6 @@
 use std::mem::transmute;
 use std::ops::{Deref, DerefMut};
-use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard, TryLockError};
+use std::sync::{PoisonError, RwLock, RwLockReadGuard, RwLockWriteGuard, TryLockError};
 
 use crate::type_name::TypeName;
 
@@ -62,7 +62,7 @@ where
     {
         self.inner
             .into_inner()
-            .unwrap_or_else(|err| err.into_inner())
+            .unwrap_or_else(PoisonError::into_inner)
     }
 }
 
@@ -90,6 +90,7 @@ where
     /// # Safety
     /// The returned `ReadGuard` must **NOT** be used for longer than the original
     /// lifetime.
+    #[must_use]
     pub unsafe fn upgrade_lifetime<'new>(self) -> ReadGuard<'new, Value>
     {
         unsafe { transmute(self) }