error[E0381]: used binding `s` isn't initialized --> $DIR/const-generic-default-wont-borrowck.rs:3:26 | LL | let s: &'static str; s.len() | - ^ `*s` used here but it isn't initialized | | | binding declared here but left uninitialized | help: consider assigning a value | LL | let s: &'static str = ""; s.len() | ++++ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0381`.