error[E0658]: mutable references are not allowed in constant functions --> $DIR/thread-local-static.rs:10:12 | LL | const fn g(x: &mut [u32; 8]) { | ^ | = note: see issue #57349 for more information = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable error[E0625]: thread-local statics cannot be accessed at compile-time --> $DIR/thread-local-static.rs:12:28 | LL | std::mem::swap(x, &mut STATIC_VAR_2) | ^^^^^^^^^^^^ error[E0013]: constant functions cannot refer to statics --> $DIR/thread-local-static.rs:12:28 | LL | std::mem::swap(x, &mut STATIC_VAR_2) | ^^^^^^^^^^^^ | = help: consider extracting the value of the `static` to a `const`, and referring to that error[E0658]: mutable references are not allowed in constant functions --> $DIR/thread-local-static.rs:12:23 | LL | std::mem::swap(x, &mut STATIC_VAR_2) | ^^^^^^^^^^^^^^^^^ | = note: see issue #57349 for more information = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable error[E0133]: use of mutable static is unsafe and requires unsafe function or block --> $DIR/thread-local-static.rs:12:23 | LL | std::mem::swap(x, &mut STATIC_VAR_2) | ^^^^^^^^^^^^^^^^^ use of mutable static | = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior error: aborting due to 5 previous errors Some errors have detailed explanations: E0013, E0133, E0625, E0658. For more information about an error, try `rustc --explain E0013`.