warning: attempting to modify a `const` item
  --> $DIR/lint-const-item-mutation.rs:37:5
   |
LL |     ARRAY[0] = 5;
   |     ^^^^^^^^^^^^
   |
   = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified
note: `const` item defined here
  --> $DIR/lint-const-item-mutation.rs:26:1
   |
LL | const ARRAY: [u8; 1] = [25];
   | ^^^^^^^^^^^^^^^^^^^^
   = note: `#[warn(const_item_mutation)]` on by default

warning: attempting to modify a `const` item
  --> $DIR/lint-const-item-mutation.rs:38:5
   |
LL |     MY_STRUCT.field = false;
   |     ^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified
note: `const` item defined here
  --> $DIR/lint-const-item-mutation.rs:27:1
   |
LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 };
   | ^^^^^^^^^^^^^^^^^^^^^^^^^

warning: attempting to modify a `const` item
  --> $DIR/lint-const-item-mutation.rs:39:5
   |
LL |     MY_STRUCT.inner_array[0] = 'b';
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified
note: `const` item defined here
  --> $DIR/lint-const-item-mutation.rs:27:1
   |
LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 };
   | ^^^^^^^^^^^^^^^^^^^^^^^^^

warning: taking a mutable reference to a `const` item
  --> $DIR/lint-const-item-mutation.rs:40:5
   |
LL |     MY_STRUCT.use_mut();
   |     ^^^^^^^^^^^^^^^^^^^
   |
   = 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: mutable reference created due to call to this method
  --> $DIR/lint-const-item-mutation.rs:9:5
   |
LL |     fn use_mut(&mut self) {}
   |     ^^^^^^^^^^^^^^^^^^^^^
note: `const` item defined here
  --> $DIR/lint-const-item-mutation.rs:27:1
   |
LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 };
   | ^^^^^^^^^^^^^^^^^^^^^^^^^

warning: taking a mutable reference to a `const` item
  --> $DIR/lint-const-item-mutation.rs:41:5
   |
LL |     &mut MY_STRUCT;
   |     ^^^^^^^^^^^^^^
   |
   = 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/lint-const-item-mutation.rs:27:1
   |
LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 };
   | ^^^^^^^^^^^^^^^^^^^^^^^^^

warning: taking a mutable reference to a `const` item
  --> $DIR/lint-const-item-mutation.rs:42:5
   |
LL |     (&mut MY_STRUCT).use_mut();
   |     ^^^^^^^^^^^^^^^^
   |
   = 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/lint-const-item-mutation.rs:27:1
   |
LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 };
   | ^^^^^^^^^^^^^^^^^^^^^^^^^

warning: attempting to modify a `const` item
  --> $DIR/lint-const-item-mutation.rs:54:5
   |
LL |     MUTABLE2.msg = "wow";
   |     ^^^^^^^^^^^^^^^^^^^^
   |
   = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified
note: `const` item defined here
  --> $DIR/lint-const-item-mutation.rs:30:1
   |
LL | const MUTABLE2: Mutable2 = Mutable2 { msg: "", other: String::new() };
   | ^^^^^^^^^^^^^^^^^^^^^^^^

warning: taking a mutable reference to a `const` item
  --> $DIR/lint-const-item-mutation.rs:55:5
   |
LL |     VEC.push(0);
   |     ^^^^^^^^^^^
   |
   = 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: mutable reference created due to call to this method
  --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
note: `const` item defined here
  --> $DIR/lint-const-item-mutation.rs:31:1
   |
LL | const VEC: Vec<i32> = Vec::new();
   | ^^^^^^^^^^^^^^^^^^^

warning: 8 warnings emitted