From d75759e829fdcd64ef071cf4b6eae2a011a7718b Mon Sep 17 00:00:00 2001
From: frogtd <31412003+frogtd@users.noreply.github.com>
Date: Sat, 25 Sep 2021 04:52:18 -0400
Subject: [PATCH] fix(move_semantics5): change &mut *y to &mut x (#814)

Instead of having to explain why
```rs
let mut x = 100;
let y = &mut x;
let mut z_owned = *y;
let z = &mut z_owned;
*y += 100;
*z += 1000;
```
and
```rs
let mut x = 100;
let y = &mut x;
let z = &mut *y;
*y += 100;
*z += 1000;
```
are different, you still get the point across about having only one mutable reference.
As it stands, this exercise does too much (dereferencing and having only one mutable reference), and by doing so confuses people.

Example of someone being confused by this:
<https://discord.com/channels/273534239310479360/273541522815713281/872689531428692040>
---
 exercises/move_semantics/move_semantics5.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exercises/move_semantics/move_semantics5.rs b/exercises/move_semantics/move_semantics5.rs
index 5449e95..1afe16c 100644
--- a/exercises/move_semantics/move_semantics5.rs
+++ b/exercises/move_semantics/move_semantics5.rs
@@ -8,7 +8,7 @@
 fn main() {
     let mut x = 100;
     let y = &mut x;
-    let z = &mut *y;
+    let z = &mut x;
     *y += 100;
     *z += 1000;
     assert_eq!(x, 1200);