Fuzz more of existing api's #3784

Job	Run time
test	19m 47s
pure-rust-build	2m 2s
test-fast (windows-latest)	15m 22s
test-fast (macos-latest)	4m 36s
test-fast (ubuntu-latest)	3m 31s
cargo-deny (advisories)	32s
cargo-deny (bans licenses sources)	27s
installation (win-msvc)	8m 2s
lint	3m 51s
installation (win-gnu)	6m 38s
installation (win32-msvc)	7m 1s
test-32bit (armv7-linux-androideabi)	1m 19s
installation (win32-gnu)	7m 20s
WebAssembly (wasm32-unknown-unknown)	49s
WebAssembly (wasm32-wasi)	44s
	1h 22m 1s

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