Cut rc.2 prereleases (#512) #936

Job	Run time
build (stable, thumbv7em-none-eabi)	27s
test (stable)	25s
build (stable, wasm32-unknown-unknown)	17s
build (1.85.0, thumbv7em-none-eabi)	16s
build (1.85.0, wasm32-unknown-unknown)	20s
test (1.85.0)	22s
minimal-versions	0s
	2m 7s

Provide feedback