Rust

Add camel-case variant for future-proofing. #40

Job	Run time
Miri	39s
Rust (1.60.0)	1m 10s
Rust	29s
Rust (1.63.0)	1m 7s
Rust (1.66.0)	1m 12s
Rust (1.69.0)	27s
Rust (ubuntu-latest, x86_64, stable)	14s
Rust (1.70.0)	14s
Rust (ubuntu-latest, x86_64, beta)	24s
Rust (ubuntu-latest, x86_64, nightly)	20s
Rust (ubuntu-latest, x86_64, 1.70.0)	22s
Rust (ubuntu-latest, i686, stable)	6s
Rust (ubuntu-latest, i686, beta)	18s
Rust (ubuntu-latest, i686, nightly)	17s
Rust (ubuntu-latest, i686, 1.70.0)	16s
Rust (ubuntu-latest, aarch64, stable)	17s
Rust (ubuntu-latest, aarch64, beta)	14s
Rust (ubuntu-latest, aarch64, nightly)	14s
Rust (ubuntu-latest, aarch64, 1.70.0)	15s
Rust (windows-latest, x86_64, stable)	2m 1s
Rust (windows-latest, x86_64, beta)	38s
Rust (windows-latest, x86_64, nightly)	45s
Rust (windows-latest, x86_64, 1.70.0)	44s
Rust (windows-latest, i686, stable)	1m 26s
Rust (windows-latest, i686, beta)	26s
Rust (windows-latest, i686, nightly)	31s
Rust (windows-latest, i686, 1.70.0)	37s
Rust (windows-latest, aarch64, stable)	1m 22s
Rust (windows-latest, aarch64, beta)	27s
Rust (windows-latest, aarch64, nightly)	27s
Rust (windows-latest, aarch64, 1.70.0)	26s
	18m 25s

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