Rust

Fix lints/tests on nightly and unpin the CI nightly version #7113

Job	Run time
Integration Test (x86_64)	1m 17s
Integration Test (AArch64)	1m 20s
Integration Test (IA-32)	1m 21s
Integration Test (x86_64 Windows)	2m 40s
Unit + Doc Tests (Miri)	1m 5s
Build (stable MSRV)	31s
Unit + Doc Tests	41s
Build (feature permutations)	3m 48s
Build (uefi-raw MSRV)	34s
Nightly (build, test, doc)	1m 31s
Build Standard Binary (nightly)	22s
Test Coverage	36s
	15m 46s

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