error[E0282]: type annotations needed
  --> $DIR/issue-112225-2.rs:13:9
   |
LL |     let x = Default::default();
   |         ^
...
LL |         async { x.0; },
   |                 - type must be known at this point
   |
help: consider giving `x` an explicit type
   |
LL |     let x: /* Type */ = Default::default();
   |          ++++++++++++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0282`.