Appease clippy #40

Job	Run time
Test wasm32-wasip1-thread	46s
Test (stable)	1m 16s
Test (beta)	1m 15s
Test (nightly)	1m 9s
Test (linux32)	2m 0s
Test (macos)	3m 31s
Test (aarch64-macos)	53s
Test (aarch64-ios)	1m 17s
Test wasm (wasm32-unknown-unknown)	15s
Test (win32)	2m 13s
Test build-std (aarch64-tvos)	1m 45s
Clippy	15s
Test (win64)	2m 18s
Test build-std (aarch64-tvos-sim)	1m 47s
Test CUDA support	35s
Test (mingw32)	2m 30s
Test build-std (x86_64-tvos)	1m 47s
Test (mingw64)	2m 18s
MSRV (ubuntu-latest)	29s
Test (windows-2019)	1m 33s
MSRV (windows-latest)	51s
Rustfmt	12s
semver-checks	14s
Test (windows-aarch64, windows-latest, stable, aarch64-pc-windows-msvc, --no-run)	2m 38s
MSRV (macos-latest)	28s
Test (windows-clang, windows-2019, stable, x86_64-pc-windows-msvc, clang, clang++)	2m 16s
Test (windows-clang-cl, windows-2019, stable, x86_64-pc-windows-msvc, clang-cl, clang-cl)	2m 49s
	39m 20s

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