src/test/ui/issues/issue-5062.stderr

   1 error[E0282]: type annotations needed
   2   --> $DIR/issue-5062.rs:1:29
   3    |
   4 LL | fn main() { format!("{:?}", None); }
   5    |                             ^^^^ cannot infer type for type parameter `T` declared on the enum `Option`
   6
   7 error: aborting due to previous error
   8
   9 For more information about this error, try `rustc --explain E0282`.