tests/ui/impl-trait/issue-103599.stderr

   1 warning: function cannot return without recursing
   2   --> $DIR/issue-103599.rs:5:1
   3    |
   4 LL | fn wrap(x: impl T) -> impl T {
   5    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
   6 LL |
   7 LL |     wrap(wrap(x))
   8    |          ------- recursive call site
   9    |
  10    = help: a `loop` may express intention better if this is on purpose
  11    = note: `#[warn(unconditional_recursion)]` on by default
  12
  13 warning: 1 warning emitted
  14