warning: unused generator that must be used
  --> $DIR/yield-in-initializer.rs:6:5
   |
LL | /     static || {
LL | |         loop {
LL | |             // Test that `opt` is not live across the yield, even when borrowed in a loop
LL | |             // See https://github.com/rust-lang/rust/issues/52792
...  |
LL | |         }
LL | |     };
   | |______^
   |
   = note: `#[warn(unused_must_use)]` on by default
   = note: generators are lazy and do nothing unless resumed

warning: 1 warning emitted