error[E0284]: type annotations required: cannot resolve `<_ as std::ops::Try>::Ok == _` | |
--> $DIR/question-mark-type-infer.rs:22:5 | |
| | |
LL | l.iter().map(f).collect()? //~ ERROR type annotations required: cannot resolve | |
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0284`. |