error[E0308]: mismatched types
  --> $DIR/issue-87461.rs:10:8
   |
LL |     Ok(())
   |     -- ^^ expected `u16`, found `()`
   |     |
   |     arguments to this enum variant are incorrect
   |
note: tuple variant defined here
  --> $SRC_DIR/core/src/result.rs:LL:COL

error[E0308]: mismatched types
  --> $DIR/issue-87461.rs:17:8
   |
LL |     Ok(())
   |     -- ^^ expected `u16`, found `()`
   |     |
   |     arguments to this enum variant are incorrect
   |
note: tuple variant defined here
  --> $SRC_DIR/core/src/result.rs:LL:COL

error[E0308]: mismatched types
  --> $DIR/issue-87461.rs:26:12
   |
LL |         Ok(())
   |         -- ^^ expected `u16`, found `()`
   |         |
   |         arguments to this enum variant are incorrect
   |
note: tuple variant defined here
  --> $SRC_DIR/core/src/result.rs:LL:COL

error: aborting due to 3 previous errors

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