error[E0282]: type annotations needed
- --> $DIR/question-mark-type-infer.rs:10:30
+ --> $DIR/question-mark-type-infer.rs:10:21
|
LL | l.iter().map(f).collect()?
- | ^ cannot infer type
+ | ^^^^^^^ cannot infer type of the type parameter `B` declared on the associated function `collect`
+ |
+help: consider specifying the generic argument
+ |
+LL | l.iter().map(f).collect::<Vec<_>>()?
+ | ++++++++++
error: aborting due to previous error