error[E0284]: type annotations needed: cannot satisfy `<u8 as Element<_>>::Array == [u8; 3]`
  --> $DIR/issue-69683.rs:30:10
   |
LL |     0u16.foo(b);
   |          ^^^ cannot satisfy `<u8 as Element<_>>::Array == [u8; 3]`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0284`.