ci: Make rustfmt and clippy happy #643

Job	Run time
test (x86_64-unknown-linux-gnu, stable)	4m 21s
test (x86_64-unknown-linux-gnu, nightly)	4m 0s
test (i686-unknown-linux-gnu, stable)	1m 26s
test (i686-unknown-linux-gnu, nightly)	1m 35s
test (aarch64-unknown-linux-gnu, stable)	1m 25s
test (aarch64-unknown-linux-gnu, nightly)	1m 36s
test (armv7-unknown-linux-gnueabihf, stable)	1m 39s
test (armv7-unknown-linux-gnueabihf, nightly)	1m 28s
test (riscv64gc-unknown-linux-gnu, stable)	1m 32s
test (riscv64gc-unknown-linux-gnu, nightly)	1m 25s
test (s390x-unknown-linux-gnu, stable)	1m 33s
test (s390x-unknown-linux-gnu, nightly)	1m 38s
test (x86_64-apple-darwin, stable)	1m 0s
test (x86_64-apple-darwin, nightly)	4m 1s
test (aarch64-apple-darwin, stable)	2m 43s
test (aarch64-apple-darwin, nightly)	3m 5s
test (x86_64-pc-windows-gnu, stable)	2m 14s
test (x86_64-pc-windows-gnu, nightly)	3m 15s
test (x86_64-pc-windows-msvc, stable)	4m 40s
test (x86_64-pc-windows-msvc, nightly)	4m 47s
test (i686-pc-windows-gnu, stable)	4m 49s
test (i686-pc-windows-gnu, nightly)	9m 13s
test (i686-pc-windows-msvc, stable)	3m 38s
test (i686-pc-windows-msvc, nightly)	5m 26s
	1h 12m 29s

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