Fix library

Author: saethlin

library/core/src/slice/mod.rs

@@ -655,6 +655,7 @@ impl<T> [T] {
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]
     #[must_use]
+    #[track_caller]
     pub unsafe fn get_unchecked<I>(&self, index: I) -> &I::Output
     where
         I: SliceIndex<Self>,
@@ -697,6 +698,7 @@ impl<T> [T] {
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]
     #[must_use]
+    #[track_caller]
     pub unsafe fn get_unchecked_mut<I>(&mut self, index: I) -> &mut I::Output
     where
         I: SliceIndex<Self>,
@@ -4562,6 +4564,7 @@ impl<T> [T] {
     /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html
     #[unstable(feature = "get_many_mut", issue = "104642")]
     #[inline]
+    #[track_caller]
     pub unsafe fn get_many_unchecked_mut<I, const N: usize>(
         &mut self,
         indices: [I; N],