LL | opaque(Some(t))
| --------------- recursive call site
|
- = note: `#[warn(unconditional_recursion)]` on by default
= help: a `loop` may express intention better if this is on purpose
+ = note: `#[warn(unconditional_recursion)]` on by default
error[E0720]: cannot resolve opaque type
--> $DIR/issue-100075-2.rs:1:23