sha2

sha1: implement collision detection and mitigation #1093

Job	Run time
minimal-versions / minimal-versions	52s
set-msrv / set-msrv	2s
windows (1.72.0, x86_64-pc-windows-gnu)	49s
windows (stable, x86_64-pc-windows-gnu)	1m 39s
linux (i686-unknown-linux-gnu, 1.72.0, sudo apt update && sudo apt install gcc-multilib)	2m 3s
cross (1.72.0, aarch64-unknown-linux-gnu, default)	42s
linux (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	1m 6s
build (1.72.0, thumbv7em-none-eabi)	22s
cross (1.72.0, powerpc-unknown-linux-gnu, default)	46s
linux (x86_64-unknown-linux-gnu, 1.72.0)	1m 6s
macos (1.72.0)	51s
build (1.72.0, wasm32-unknown-unknown)	28s
cross (stable, aarch64-unknown-linux-gnu, default)	56s
linux (x86_64-unknown-linux-gnu, stable)	46s
macos (stable)	34s
build (1.72.0, loongarch64-unknown-linux-gnu)	27s
cross (stable, powerpc-unknown-linux-gnu, default)	43s
build (stable, thumbv7em-none-eabi)	35s
build (stable, wasm32-unknown-unknown)	23s
build (stable, loongarch64-unknown-linux-gnu)	13s
	15m 23s

Provide feedback