| 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`. |
