error: `loop...else` loops are not supported --> $DIR/loop-else-break-with-value.rs:10:7 | LL | let Some(1) = loop { | ---- `else` is attached to this loop ... LL | } else { | _______^ LL | | LL | | LL | | return; LL | | }; | |_____^ | = note: consider moving this `else` clause to a separate `if` statement and use a `bool` variable to control if it should run error[E0005]: refutable pattern in local binding --> $DIR/loop-else-break-with-value.rs:2:9 | LL | let Some(1) = loop { | ^^^^^^^ pattern `None` not covered | = note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html = note: the matched value is of type `Option` help: you might want to use `if let` to ignore the variant that isn't matched | LL ~ if let Some(1) = loop { LL | ... LL | return; LL ~ } { todo!() }; | error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0005`.