Rust

Add method to help ensure the type impl ImplicitClone (#44) #102

Job	Run time
test (ubuntu-latest, stable, 1.9.3)	11s
test (ubuntu-latest, stable, latest)	12s
test (ubuntu-latest, 1.64.0, 1.9.3)	5m 28s
test (ubuntu-latest, 1.64.0, latest)	3m 31s
test (windows-latest, stable, 1.9.3)	45s
test (windows-latest, stable, latest)	1m 23s
test (windows-latest, 1.64.0, 1.9.3)	8m 8s
test (windows-latest, 1.64.0, latest)	8m 7s
test (macos-latest, stable, 1.9.3)	29s
test (macos-latest, stable, latest)	34s
test (macos-latest, 1.64.0, 1.9.3)	6m 40s
test (macos-latest, 1.64.0, latest)	6m 38s
	42m 6s

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