Rust

feat: added `alloc_cstr`, `alloc_cstr_from_str`, `alloc_cstr_fmt` and… #251

Job	Run time
clippy-benches	29s
clippy (1.64.0, --no-default-features)	1m 57s
test	5m 40s
format	7s
clippy (stable, --no-default-features)	13s
clippy (nightly, --all-features, --tests)	37s
	9m 3s

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