1 files changed, 66 insertions, 0 deletions
diff --git a/src/test/ui/error-codes/E0388.stderr b/src/test/ui/error-codes/E0388.stderr
new file mode 100644
index 000000000..106efc19a
--- /dev/null
+++ b/src/test/ui/error-codes/E0388.stderr
@@ -0,0 +1,66 @@
+warning: taking a mutable reference to a `const` item
+  --> $DIR/E0388.rs:4:30
+   |
+LL | const CR: &'static mut i32 = &mut C;
+   |                              ^^^^^^
+   |
+   = note: `#[warn(const_item_mutation)]` on by default
+   = 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/E0388.rs:2:1
+   |
+LL | const C: i32 = 2;
+   | ^^^^^^^^^^^^
+
+error[E0764]: mutable references are not allowed in the final value of constants
+  --> $DIR/E0388.rs:4:30
+   |
+LL | const CR: &'static mut i32 = &mut C;
+   |                              ^^^^^^
+
+error[E0658]: mutation through a reference is not allowed in statics
+  --> $DIR/E0388.rs:6:39
+   |
+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
+
+error[E0764]: mutable references are not allowed in the final value of statics
+  --> $DIR/E0388.rs:6:39
+   |
+LL | static STATIC_REF: &'static mut i32 = &mut X;
+   |                                       ^^^^^^
+
+error[E0596]: cannot borrow immutable static item `X` as mutable
+  --> $DIR/E0388.rs:6:39
+   |
+LL | static STATIC_REF: &'static mut i32 = &mut X;
+   |                                       ^^^^^^ cannot borrow as mutable
+
+warning: taking a mutable reference to a `const` item
+  --> $DIR/E0388.rs:10:38
+   |
+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/E0388.rs:2:1
+   |
+LL | const C: i32 = 2;
+   | ^^^^^^^^^^^^
+
+error[E0764]: mutable references are not allowed in the final value of statics
+  --> $DIR/E0388.rs:10:38
+   |
+LL | static CONST_REF: &'static mut i32 = &mut C;
+   |                                      ^^^^^^
+
+error: aborting due to 5 previous errors; 2 warnings emitted
+
+Some errors have detailed explanations: E0596, E0658, E0764.
+For more information about an error, try `rustc --explain E0596`.