ALSA PCM.try_recover: error handling #941

Job	Run time
rustfmt-check	3s
ubuntu-test	50s
asmjs-wasm32-test (wasm32-unknown-emscripten)	49s
clippy-test	43s
cargo-publish	0s
wasm32-bindgen-test (wasm32-unknown-unknown)	23s
windows-test (x86_64)	4m 23s
wasm32-wasi-test (wasm32-wasi)	16s
windows-test (i686)	4m 4s
android-apk-build	1m 32s
android-check	42s
ios-build	2m 5s
linux-check-and-test-armv7	1m 33s
macos-test	53s
wasm-beep-build	31s
	18m 47s

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