From 763094bb591235c9c02188aa7e43b6f876153c48 Mon Sep 17 00:00:00 2001
From: Jendrik <buhtig@jendrik.eu>
Date: Sat, 26 Mar 2022 16:23:55 +0100
Subject: [PATCH] add #[must_use] to functions of slice and its iterators.