Apply clippy suggestions #1824

Job	Run time
build-windows-master (dev, x86_64-pc-windows-msvc)	19m 39s
build-windows-master (dev, aarch64-pc-windows-msvc)	15m 36s
build-linux-master (dev, x86_64-unknown-linux-gnu)	5m 29s
build-windows-master (dev, x86_64-pc-windows-gnu)	3m 32s
build-linux-master (dev, armv7-unknown-linux-gnueabihf)	1m 24s
build-windows-master (release, x86_64-pc-windows-msvc)	7m 33s
build-linux-master (dev, aarch64-linux-android)	1m 26s
build-windows-master (release, aarch64-pc-windows-msvc)	7m 36s
build-linux-master (dev, aarch64-unknown-linux-gnu)	1m 6s
build-windows-master (release, x86_64-pc-windows-gnu)	7m 33s
build-linux-master (dev, powerpc64-unknown-linux-gnu)	1m 24s
build-linux-master (dev, x86_64-unknown-linux-musl)	59s
build-linux-master (release, x86_64-unknown-linux-gnu)	2m 31s
build-linux-pr	0s
build-linux-master (release, armv7-unknown-linux-gnueabihf)	2m 19s
build-macos-x86_64 (dev, x86_64-apple-darwin)	8m 56s
build-macos-x86_64 (release, x86_64-apple-darwin)	3m 49s
build-linux-master (release, aarch64-linux-android)	2m 31s
build-windows-pr	0s
build-linux-master (release, aarch64-unknown-linux-gnu)	2m 38s
build-linux-master (release, powerpc64-unknown-linux-gnu)	2m 26s
build-windows-stable	0s
build-linux-master (release, x86_64-unknown-linux-musl)	2m 8s
build-freebsd-master	32m 50s
build-freebsd-stable	0s
build-linux-stable	0s
build-macos-aarch64 (dev, aarch64-apple-darwin)	10m 40s
check	3m 10s
build-macos-aarch64 (release, aarch64-apple-darwin)	2m 0s
build-all-features	0s
doc	0s
conclusion	1s
	2h 29m 16s

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