src/test/ui/span/type-annotations-needed-expr.stderr

   1 error[E0282]: type annotations needed
   2   --> $DIR/type-annotations-needed-expr.rs:2:39
   3    |
   4 LL |     let _ = (vec![1,2,3]).into_iter().sum() as f64;
   5    |                                       ^^^
   6    |                                       |
   7    |                                       cannot infer type for type parameter `S`
   8    |                                       help: consider specifying the type argument in the method call: `sum::<S>`
   9    |
  10    = note: type must be known at this point
  11
  12 error: aborting due to previous error
  13
  14 For more information about this error, try `rustc --explain E0282`.