diff --git a/src/test/ui/consts/const-address-of-mut.rs b/src/test/ui/consts/const-address-of-mut.rs
index fe9188cb4904c..3788088b810b9 100644
--- a/src/test/ui/consts/const-address-of-mut.rs
+++ b/src/test/ui/consts/const-address-of-mut.rs
@@ -1,14 +1,14 @@
 #![feature(raw_ref_op)]
 
-const A: () = { let mut x = 2; &raw mut x; };           //~ ERROR `&raw mut` is not allowed
+const A: () = { let mut x = 2; &raw mut x; };           //~ mutable reference
 
-static B: () = { let mut x = 2; &raw mut x; };          //~ ERROR `&raw mut` is not allowed
+static B: () = { let mut x = 2; &raw mut x; };          //~ mutable reference
 
-static mut C: () = { let mut x = 2; &raw mut x; };      //~ ERROR `&raw mut` is not allowed
+static mut C: () = { let mut x = 2; &raw mut x; };      //~ mutable reference
 
 const fn foo() {
     let mut x = 0;
-    let y = &raw mut x;                                 //~ ERROR `&raw mut` is not allowed
+    let y = &raw mut x;                                 //~ mutable reference
 }
 
 fn main() {}
diff --git a/src/test/ui/consts/const-address-of-mut.stderr b/src/test/ui/consts/const-address-of-mut.stderr
index 1d9a325b0c2a0..ec2dac5a7d16f 100644
--- a/src/test/ui/consts/const-address-of-mut.stderr
+++ b/src/test/ui/consts/const-address-of-mut.stderr
@@ -1,31 +1,22 @@
-error[E0658]: `&raw mut` is not allowed in constants
+error[E0764]: raw mutable references are not allowed in constants
   --> $DIR/const-address-of-mut.rs:3:32
    |
 LL | const A: () = { let mut x = 2; &raw 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
+   |                                ^^^^^^^^^^ `&raw mut` is only allowed in `const fn`
 
-error[E0658]: `&raw mut` is not allowed in statics
+error[E0764]: raw mutable references are not allowed in statics
   --> $DIR/const-address-of-mut.rs:5:33
    |
 LL | static B: () = { let mut x = 2; &raw 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
+   |                                 ^^^^^^^^^^ `&raw mut` is only allowed in `const fn`
 
-error[E0658]: `&raw mut` is not allowed in statics
+error[E0764]: raw mutable references are not allowed in statics
   --> $DIR/const-address-of-mut.rs:7:37
    |
 LL | static mut C: () = { let mut x = 2; &raw 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
+   |                                     ^^^^^^^^^^ `&raw mut` is only allowed in `const fn`
 
-error[E0658]: `&raw mut` is not allowed in constant functions
+error[E0658]: raw mutable references are not allowed in constant functions
   --> $DIR/const-address-of-mut.rs:11:13
    |
 LL |     let y = &raw mut x;
@@ -36,4 +27,5 @@ LL |     let y = &raw mut x;
 
 error: aborting due to 4 previous errors
 
-For more information about this error, try `rustc --explain E0658`.
+Some errors have detailed explanations: E0658, E0764.
+For more information about an error, try `rustc --explain E0658`.
diff --git a/src/test/ui/consts/min_const_fn/address_of.rs b/src/test/ui/consts/min_const_fn/address_of.rs
index f8506d70b2498..40d1882d7d2ad 100644
--- a/src/test/ui/consts/min_const_fn/address_of.rs
+++ b/src/test/ui/consts/min_const_fn/address_of.rs
@@ -2,7 +2,7 @@
 
 const fn mutable_address_of_in_const() {
     let mut a = 0;
-    let b = &raw mut a;         //~ ERROR `&raw mut` is not allowed
+    let b = &raw mut a;         //~ ERROR mutable reference
 }
 
 struct X;
@@ -10,7 +10,7 @@ struct X;
 impl X {
     const fn inherent_mutable_address_of_in_const() {
         let mut a = 0;
-        let b = &raw mut a;     //~ ERROR `&raw mut` is not allowed
+        let b = &raw mut a;     //~ ERROR mutable reference
     }
 }
 
diff --git a/src/test/ui/consts/min_const_fn/address_of.stderr b/src/test/ui/consts/min_const_fn/address_of.stderr
index 4d9d1d79284a8..facc566513c28 100644
--- a/src/test/ui/consts/min_const_fn/address_of.stderr
+++ b/src/test/ui/consts/min_const_fn/address_of.stderr
@@ -1,4 +1,4 @@
-error[E0658]: `&raw mut` is not allowed in constant functions
+error[E0658]: raw mutable references are not allowed in constant functions
   --> $DIR/address_of.rs:5:13
    |
 LL |     let b = &raw mut a;
@@ -7,7 +7,7 @@ LL |     let b = &raw mut a;
    = 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[E0658]: `&raw mut` is not allowed in constant functions
+error[E0658]: raw mutable references are not allowed in constant functions
   --> $DIR/address_of.rs:13:17
    |
 LL |         let b = &raw mut a;