Remove unsafe code from macro expansions #2195

Job	Run time
check no_std	59s
clippy	48s
docs	34s
features stable	1m 58s
features stable --all-targets	3m 11s
features nightly	1m 31s
fmt	13s
features nightly --all-targets	2m 47s
miri --no-default-features	4m 43s
wasm	27s
miri	4m 51s
test ubuntu-latest stable --no-default-features	1m 4s
miri --all-features	7m 28s
test ubuntu-latest stable	1m 7s
test ubuntu-latest nightly --no-default-features	54s
test ubuntu-latest nightly	45s
test ubuntu-latest 1.81 --no-default-features	35s
test ubuntu-latest 1.81	35s
test windows-latest stable --no-default-features	2m 52s
test windows-latest stable	3m 43s
test windows-latest nightly --no-default-features	1m 58s
test windows-latest nightly	1m 53s
test windows-latest 1.81 --no-default-features	1m 17s
test windows-latest 1.81	1m 14s
test ubuntu-latest 1.81 --features json	36s
test windows-latest 1.81 --features json	1m 31s
test ubuntu-latest nightly --all-features	1m 7s
test windows-latest nightly --all-features	3m 12s
ci success	7s
	54m 0s

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