error[E0308]: `?` operator has incompatible types
 --> test/binary/01-type-inference.rs:6:36
  |
6 |     let _: Message<types::Reset> = port.tx_recv((0, HOME))?;
  |                                    ^^^^^^^^^^^^^^^^^^^^^^^^ expected `Message<Reset>`, found `Message<Home>`
  |
  = note: `?` operator cannot convert from `Message<Home>` to `Message<Reset>`
  = note: expected struct `Message<Reset>`
             found struct `Message<Home>`

error[E0308]: `?` operator has incompatible types
 --> test/binary/01-type-inference.rs:7:35
  |
7 |     let _: Message<types::Home> = port.tx_recv((0, untyped::HOME, 0i32))?;
  |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Message<Home>`, found `Message`
  |
  = note: `?` operator cannot convert from `Message<u8>` to `Message<Home>`
  = note: expected struct `Message<Home>`
             found struct `Message<u8>`

error[E0308]: `?` operator has incompatible types
 --> test/binary/01-type-inference.rs:8:44
  |
8 |     let _: Message<types::ReturnSetting> = port.tx_recv((0, RETURN_SETTING, RETURN_CURRENT_POSITION))?;
  |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Message<ReturnSetting>`, found `Message<ReturnCurrentPosition>`
  |
  = note: `?` operator cannot convert from `Message<ReturnCurrentPosition>` to `Message<ReturnSetting>`
  = note: expected struct `Message<ReturnSetting>`
             found struct `Message<ReturnCurrentPosition>`

error[E0308]: `?` operator has incompatible types
 --> test/binary/01-type-inference.rs:9:44
  |
9 |     let _: Message<types::ReturnSetting> = port.tx_recv((0, RETURN_SETTING, SET_TARGET_SPEED))?;
  |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Message<ReturnSetting>`, found `Message<SetTargetSpeed>`
  |
  = note: `?` operator cannot convert from `Message<SetTargetSpeed>` to `Message<ReturnSetting>`
  = note: expected struct `Message<ReturnSetting>`
             found struct `Message<SetTargetSpeed>`