1 error[E0004]: non-exhaustive patterns: `(true, false)` not covered
2 --> $DIR/issue-4321.rs:3:31
4 LL | println!("foo {:}", match tup {
5 | ^^^ pattern `(true, false)` not covered
7 = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
8 = note: the matched value is of type `(bool, bool)`
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0004`.