Auto merge of #69796 - Centril:rollup-xg85jmx, r=Centril

Rollup of 9 pull requests

Successful merges:

 - #67741 (When encountering an Item in a pat context, point at the item def)
 - #68985 (Parse & reject postfix operators after casts)
 - #69656 (Use .next() instead of .nth(0) on iterators.)
 - #69680 (rustc_expand: Factor out `Annotatable::into_tokens` to a separate method)
 - #69690 (test(pattern): add tests for combinations of pattern features)
 - #69706 (Use subslice patterns in slice methods)
 - #69727 (Avoid using `unwrap()` in suggestions)
 - #69754 (Update deprecation version to 1.42 for Error::description)
 - #69782 (Don't redundantly repeat field names (clippy::redundant_field_names))

Failed merges:

r? @ghost

2 files changed, 3 insertions, 6 deletions

diff --git a/src/libstd/sync/mutex.rs b/src/libstd/sync/mutex.rs
index 6eeddc28512..0cb16b19d73 100644
--- a/src/libstd/sync/mutex.rs
+++ b/src/libstd/sync/mutex.rs
@@ -416,7 +416,7 @@ impl<T: ?Sized + fmt::Debug> fmt::Debug for Mutex<T> {
 
 impl<'mutex, T: ?Sized> MutexGuard<'mutex, T> {
     unsafe fn new(lock: &'mutex Mutex<T>) -> LockResult<MutexGuard<'mutex, T>> {
-        poison::map_result(lock.poison.borrow(), |guard| MutexGuard { lock: lock, poison: guard })
+        poison::map_result(lock.poison.borrow(), |guard| MutexGuard { lock, poison: guard })
     }
 }
 
diff --git a/src/libstd/sync/rwlock.rs b/src/libstd/sync/rwlock.rs
index fdd29af8581..50f54dbf143 100644
--- a/src/libstd/sync/rwlock.rs
+++ b/src/libstd/sync/rwlock.rs
@@ -465,16 +465,13 @@ impl<T> From<T> for RwLock<T> {
 
 impl<'rwlock, T: ?Sized> RwLockReadGuard<'rwlock, T> {
     unsafe fn new(lock: &'rwlock RwLock<T>) -> LockResult<RwLockReadGuard<'rwlock, T>> {
-        poison::map_result(lock.poison.borrow(), |_| RwLockReadGuard { lock: lock })
+        poison::map_result(lock.poison.borrow(), |_| RwLockReadGuard { lock })
     }
 }
 
 impl<'rwlock, T: ?Sized> RwLockWriteGuard<'rwlock, T> {
     unsafe fn new(lock: &'rwlock RwLock<T>) -> LockResult<RwLockWriteGuard<'rwlock, T>> {
-        poison::map_result(lock.poison.borrow(), |guard| RwLockWriteGuard {
-            lock: lock,
-            poison: guard,
-        })
+        poison::map_result(lock.poison.borrow(), |guard| RwLockWriteGuard { lock, poison: guard })
     }
 }