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error[E0720]: cannot resolve opaque type
--> $DIR/issue-103599.rs:3:23
|
LL | fn wrap(x: impl T) -> impl T {
| ^^^^^^
warning: function cannot return without recursing
--> $DIR/issue-103599.rs:3:1
|
LL | fn wrap(x: impl T) -> impl T {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
...
LL | wrap(wrap(x))
| ------- recursive call site
|
= help: a `loop` may express intention better if this is on purpose
= note: `#[warn(unconditional_recursion)]` on by default
error: aborting due to 1 previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0720`.
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