error[E0308]: mismatched types
  --> $DIR/issue-37026.rs:6:9
   |
LL |     let empty_struct::XEmpty2 = ();
   |         ^^^^^^^^^^^^^^^^^^^^^   -- this expression has type `()`
   |         |
   |         expected `()`, found `XEmpty2`

error[E0308]: mismatched types
  --> $DIR/issue-37026.rs:7:9
   |
LL |     let empty_struct::XEmpty6(..) = ();
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^   -- this expression has type `()`
   |         |
   |         expected `()`, found `XEmpty6`

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0308`.