ccm

Insert temporary documentation hard-links as a solution to #575 until https://github.com/rust-lang/rust/issues/120983 is fixed. #732

Job	Run time
build (1.56.0, thumbv7em-none-eabi)	3m 6s
build (1.56.0, wasm32-unknown-unknown)	3m 9s
build (stable, thumbv7em-none-eabi)	20s
test (i686-unknown-linux-gnu, 1.56.0, sudo apt update && sudo apt install gcc-multilib)	3m 39s
build (stable, wasm32-unknown-unknown)	8s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	43s
test (x86_64-unknown-linux-gnu, 1.56.0)	3m 38s
test (x86_64-unknown-linux-gnu, stable)	20s
	15m 3s

Provide feedback