Auto merge of #27252 - tbu-:pr_less_transmutes, r=alexcrichton

The replacements are functions that usually use a single `mem::transmute` in their body and restrict input and output via more concrete types than `T` and `U`. Worth noting are the `transmute` functions for slices and the `from_utf8*` family for mutable slices. Additionally, `mem::transmute` was often used for casting raw pointers, when you can already cast raw pointers just fine with `as`.

This builds upon #27233.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/liballoc/arc.rs b/src/liballoc/arc.rs
index 1e592397014..56c7324090e 100644
--- a/src/liballoc/arc.rs
+++ b/src/liballoc/arc.rs
@@ -193,7 +193,7 @@ impl<T> Arc<T> {
             weak: atomic::AtomicUsize::new(1),
             data: data,
         };
-        Arc { _ptr: unsafe { NonZero::new(mem::transmute(x)) } }
+        Arc { _ptr: unsafe { NonZero::new(Box::into_raw(x)) } }
     }
 }