Adjusted some doctests in libcore to use `should_panic`.#73302

Merged

bors merged 1 commit intorust-lang:masterfrom

JakobDegen:should-panic-documentation

Jun 13, 2020

Commits on Jun 13, 2020

Adjusted some doctests in libcore to use `should_panic`.

Jake Degen
authored and
JakobDegen
committed