aucpace: fix lints (#193) #296

Job	Run time
build (1.60.0, thumbv7em-none-eabi)	5m 11s
build (stable, thumbv7em-none-eabi)	17s
build (stable, wasm32-unknown-unknown)	17s
test (stable)	22s
build (1.60.0, wasm32-unknown-unknown)	5m 11s
test (1.60.0)	5m 35s
	16m 53s

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