src/test/ui/question-mark-type-infer.stderr

   1 error[E0284]: type annotations needed
   2   --> $DIR/question-mark-type-infer.rs:12:21
   3    |
   4 LL |     l.iter().map(f).collect()?
   5    |                     ^^^^^^^ cannot infer type
   6    |
   7    = note: cannot satisfy `<_ as std::ops::Try>::Ok == _`
   8 help: consider specifying the type argument in the method call
   9    |
  10 LL |     l.iter().map(f).collect::<B>()?
  11    |                            ^^^^^
  12
  13 error: aborting due to previous error
  14
  15 For more information about this error, try `rustc --explain E0284`.