error: unknown start of token: \u{201c}
  --> $DIR/unicode-quote-chars.rs:4:14
   |
LL |     println!(“hello world”);
   |              ^
help: Unicode characters '“' (Left Double Quotation Mark) and '”' (Right Double Quotation Mark) look like '"' (Quotation Mark), but are not
   |
LL |     println!("hello world");
   |              ^^^^^^^^^^^^^

error: aborting due to previous error