error[E0658]: mutation through a reference is not allowed in statics --> $DIR/mod-static-with-const-fn.rs:16:5 | LL | *FOO.0.get() = 5; | ^^^^^^^^^^^^^^^^ | = note: see issue #57349 for more information = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable error: aborting due to previous error For more information about this error, try `rustc --explain E0658`.