1 error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in variable binding
2 --> $DIR/issue-58504.rs:10:16
4 LL | let gens: [impl Generator<Return=!, Yield=()>;2] = [ mk_gen(), mk_gen() ];
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
7 error: aborting due to previous error
9 For more information about this error, try `rustc --explain E0562`.