Migrate to new dev macro #909

Job	Run time
build (stable, thumbv7em-none-eabi)	14s
build (stable, wasm32-unknown-unknown)	12s
build (1.85.0, wasm32-unknown-unknown)	18s
test (stable)	24s
test (1.85.0)	24s
build (1.85.0, thumbv7em-none-eabi)	15s
minimal-versions	-7s
	1m 40s

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