Insert temporary documentation hard-links as a solution to #575 until https://github.com/rust-lang/rust/issues/120983 is fixed. #842

Job	Run time
test (i686-unknown-linux-gnu, 1.56.0, sudo apt update && sudo apt install gcc-multilib)	3m 55s
build (1.56.0, armv7a-none-eabi)	3m 14s
build (1.56.0, thumbv7em-none-eabi)	3m 15s
build (1.56.0, wasm32-unknown-unknown)	3m 15s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	41s
build (stable, armv7a-none-eabi)	7s
test (x86_64-unknown-linux-gnu, 1.56.0)	3m 16s
build (stable, thumbv7em-none-eabi)	11s
test (x86_64-unknown-linux-gnu, stable)	23s
build (stable, wasm32-unknown-unknown)	19s
	18m 36s

Provide feedback