Rust

style: apply/fix more clippy lints (from cargo::nursery) #7423

Job	Run time
Integration Test (x86_64)	6m 53s
Integration Test (AArch64)	1m 32s
Build Standard Binary (nightly)	30s
Test Coverage	45s
Integration Test (x86_64 Windows)	7m 39s
Build (uefi-raw MSRV)	33s
Build (feature permutations)	3m 59s
Nightly (build, test, doc)	2m 37s
Build (stable MSRV)	37s
Unit + Doc Tests (Miri)	1m 5s
Unit + Doc Tests	1m 2s
Integration Test (IA-32)	1m 9s
	28m 21s

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