Cut new prereleases (#468) #762

Job	Run time
no_std (1.85.0, wasm32-unknown-unknown)	34s
test (1.85.0)	54s
no_std (1.85.0, thumbv7em-none-eabi)	36s
no_std (stable, wasm32-unknown-unknown)	25s
minimal-versions / minimal-versions	33s
no_std (stable, thumbv7em-none-eabi)	27s
test (stable)	51s
	4m 20s

Provide feedback