1 error[E0282]: type annotations needed for `Expr<'_, VAR>`
2 --> $DIR/issue-23046.rs:17:15
7 help: consider giving this closure parameter an explicit type, where the type for type parameter `VAR` is specified
9 LL | let ex = |x: Expr<'_, VAR>| {
12 error: aborting due to previous error
14 For more information about this error, try `rustc --explain E0282`.