warning: creating a mutable reference to mutable static
  --> $DIR/borrowck-unsafe-static-mutable-borrows.rs:19:30
   |
LL |         let sfoo: *mut Foo = &mut SFOO;
   |                              ^^^^^^^^^ mutable reference to mutable static
   |
   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
   = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
   = note: `#[warn(static_mut_refs)]` on by default
help: use `&raw mut` instead to create a raw pointer
   |
LL |         let sfoo: *mut Foo = &raw mut SFOO;
   |                               +++

warning: 1 warning emitted