mcf v0.6.0 #3573

Job	Run time
test (stable)	51s
test (1.85.0)	56s
build (stable, wasm32-unknown-unknown)	30s
build (1.85.0, wasm32-unknown-unknown)	24s
build (stable, thumbv7em-none-eabi)	28s
build (1.85.0, thumbv7em-none-eabi)	27s
minimal-versions / minimal-versions	48s
	4m 24s

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