md5

Migrate from `doc_auto_cfg` to `doc_cfg` (#740) #1184

Job	Run time
set-msrv / set-msrv	5s
minimal-versions / minimal-versions	39s
test (1.85.0)	42s
build (1.85.0, loongarch64-unknown-linux-gnu)	26s
build (1.85.0, wasm32-unknown-unknown)	20s
build (stable, thumbv7em-none-eabi)	27s
build (stable, loongarch64-unknown-linux-gnu)	23s
test (stable)	38s
build (stable, wasm32-unknown-unknown)	22s
build (1.85.0, thumbv7em-none-eabi)	21s
	4m 23s

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