tests/ui/error-codes/E0017.stderr

warning: creating a mutable reference to mutable static is discouraged
  --> $DIR/E0017.rs:15:52
   |
LL | static STATIC_MUT_REF: &'static mut i32 = unsafe { &mut M };
   |                                                    ^^^^^^ mutable reference to mutable static
   |
   = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
   = note: this will be a hard error in the 2024 edition
   = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior
   = note: `#[warn(static_mut_refs)]` on by default
help: use `addr_of_mut!` instead to create a raw pointer
   |
LL | static STATIC_MUT_REF: &'static mut i32 = unsafe { addr_of_mut!(M) };
   |                                                    ~~~~~~~~~~~~~~~

warning: taking a mutable reference to a `const` item
  --> $DIR/E0017.rs:5:30
   |
LL | const CR: &'static mut i32 = &mut C;
   |                              ^^^^^^
   |
   = note: each usage of a `const` item creates a new temporary
   = note: the mutable reference will refer to this temporary, not the original `const` item
note: `const` item defined here
  --> $DIR/E0017.rs:2:1
   |
LL | const C: i32 = 2;
   | ^^^^^^^^^^^^
   = note: `#[warn(const_item_mutation)]` on by default

error[E0764]: mutable references are not allowed in the final value of constants
  --> $DIR/E0017.rs:5:30
   |
LL | const CR: &'static mut i32 = &mut C;
   |                              ^^^^^^

error[E0658]: mutation through a reference is not allowed in statics
  --> $DIR/E0017.rs:8:39
   |
LL | static STATIC_REF: &'static mut i32 = &mut X;
   |                                       ^^^^^^
   |
   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0764]: mutable references are not allowed in the final value of statics
  --> $DIR/E0017.rs:8:39
   |
LL | static STATIC_REF: &'static mut i32 = &mut X;
   |                                       ^^^^^^

error[E0596]: cannot borrow immutable static item `X` as mutable
  --> $DIR/E0017.rs:8:39
   |
LL | static STATIC_REF: &'static mut i32 = &mut X;
   |                                       ^^^^^^ cannot borrow as mutable

warning: taking a mutable reference to a `const` item
  --> $DIR/E0017.rs:12:38
   |
LL | static CONST_REF: &'static mut i32 = &mut C;
   |                                      ^^^^^^
   |
   = note: each usage of a `const` item creates a new temporary
   = note: the mutable reference will refer to this temporary, not the original `const` item
note: `const` item defined here
  --> $DIR/E0017.rs:2:1
   |
LL | const C: i32 = 2;
   | ^^^^^^^^^^^^

error[E0764]: mutable references are not allowed in the final value of statics
  --> $DIR/E0017.rs:12:38
   |
LL | static CONST_REF: &'static mut i32 = &mut C;
   |                                      ^^^^^^

error[E0764]: mutable references are not allowed in the final value of statics
  --> $DIR/E0017.rs:15:52
   |
LL | static STATIC_MUT_REF: &'static mut i32 = unsafe { &mut M };
   |                                                    ^^^^^^

error: aborting due to 6 previous errors; 3 warnings emitted

Some errors have detailed explanations: E0596, E0658, E0764.
For more information about an error, try `rustc --explain E0596`.