error[E0764]: mutable references are not allowed in the final value of statics --> $DIR/issue-46604.rs:1:25 | LL | static buf: &mut [u8] = &mut [1u8,2,3,4,5,7]; | ^^^^^^^^^^^^^^^^^^^^ error[E0594]: cannot assign to `buf[_]`, as `buf` is an immutable static item --> $DIR/issue-46604.rs:6:5 | LL | buf[0]=2; | ^^^^^^^^ cannot assign error: aborting due to 2 previous errors Some errors have detailed explanations: E0594, E0764. For more information about an error, try `rustc --explain E0594`.