src/test/ui/parser/lex-bad-char-literals-2.stderr

error: character literal may only contain one codepoint
  --> $DIR/lex-bad-char-literals-2.rs:3:5
   |
LL |     'nope'
   |     ^^^^^^
help: if you meant to write a `str` literal, use double quotes
   |
LL |     "nope"
   |     ^^^^^^

error: aborting due to previous error