Rust

Add `#![no_std]` support #180

Job	Run time
publish-dry-run	0s
fmt	11s
build-and-test (msrv, no_alloc)	5m 25s
build-and-test (msrv, std)	5m 27s
build-and-test (msrv, alloc)	5m 29s
build-and-test (latest, no_alloc)	2m 47s
build-and-test (latest, std)	2m 38s
build-and-test (latest, alloc)	2m 38s
complete	1s
	24m 36s

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