Rust

style: apply/fix more clippy lints (from cargo::nursery) (2/2) #7511

Job	Run time
Integration Test (x86_64 Windows)	3m 47s
Integration Test (AArch64)	3m 41s
Integration Test (IA-32)	1m 35s
Build (feature permutations)	4m 11s
Unit + Doc Tests	58s
Unit + Doc Tests (Miri)	1m 10s
Build (uefi-raw MSRV)	46s
Build (stable MSRV)	50s
Integration Test (x86_64)	2m 2s
Test Coverage	44s
Nightly (build, test, doc)	1m 52s
Build Standard Binary (nightly)	28s
	22m 4s

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