error: expected expression, found keyword `in`
  --> $DIR/bad.rs:10:5
   |
LL |     in(foo) { bar };
   |     ^^ expected expression

error[E0282]: type annotations needed
  --> $DIR/bad.rs:9:8
   |
LL |     let (x, y, foo, bar);
   |         ---------------- consider giving the pattern a type
LL |     x <- y;
   |        ^^^ cannot infer type
   |
   = note: type must be known at this point

error: aborting due to 2 previous errors

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