Use hex fmt for command debug print #800

Job	Run time
Check lib (x86_64-unknown-linux-gnu)	45s
Check (x86_64-apple-darwin)	49s
Check lib (aarch64-unknown-linux-gnu)	1m 24s
Check (x86_64-unknown-linux-gnu)	47s
Check lib (armv7-unknown-linux-gnueabihf)	1m 13s
Check (x86_64-unknown-linux-musl)	49s
Check (x86_64-pc-windows-msvc)	3m 7s
Clippy (x86_64-unknown-linux-gnu)	35s
Check (aarch64-unknown-linux-gnu)	1m 45s
Clippy (aarch64-unknown-linux-gnu)	2m 11s
Check lib MSRV (x86_64-unknown-linux-gnu)	36s
Clippy (armv7-unknown-linux-gnueabihf)	1m 58s
Check (armv7-unknown-linux-gnueabihf)	1m 43s
Check lib MSRV (aarch64-unknown-linux-gnu)	1m 18s
Check lib MSRV (armv7-unknown-linux-gnueabihf)	1m 42s
Rustfmt	11s
Unit Tests (x86_64-unknown-linux-gnu)	32s
Unit Tests (aarch64-unknown-linux-gnu)	1m 59s
Unit Tests (armv7-unknown-linux-gnueabihf)	1m 29s
	24m 53s

Provide feedback