error[E0005]: refutable pattern in local binding --> $DIR/resolve-issue-135614-assoc-const.rs:21:9 | LL | let DEFAULT: u32 = 0; | ^^^^^^^ pattern `1_u32..=u32::MAX` not covered LL | const DEFAULT: u32 = 0; | ------------------ missing patterns are not covered because `DEFAULT` is interpreted as a constant pattern, not a new variable | = 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/ch19-02-refutability.html = note: the matched value is of type `u32` help: introduce a variable instead | LL | let DEFAULT_var: u32 = 0; | ++++ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0005`.