Add wasm guards #30

Job	Run time
lint	7m 41s
build (macos-latest, aarch64-apple-darwin, default)	26m 8s
test (ubuntu-latest)	7m 54s
build (ubuntu-22.04-arm, aarch64-unknown-linux-musl, default)	11m 34s
build (windows-latest, x86_64-pc-windows-msvc, default)	27m 14s
build (ubuntu-latest, x86_64-unknown-linux-musl, jemalloc)	14m 8s
test (windows-latest)	17m 34s
	1h 52m 13s

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