diff --git a/tests/ui/consts/const-promoted-opaque.rs b/tests/ui/consts/const-promoted-opaque.rs
index bb33e92778aa9..00ccb4b723738 100644
--- a/tests/ui/consts/const-promoted-opaque.rs
+++ b/tests/ui/consts/const-promoted-opaque.rs
@@ -30,7 +30,7 @@ const BAR: () = {
 };
 
 const BAZ: &Foo = &FOO;
-//[atomic]~^ ERROR: constants cannot refer to interior mutable data
+//[string,atomic]~^ ERROR: constants cannot refer to interior mutable data
 
 fn main() {
     let _: &'static _ = &FOO;
diff --git a/tests/ui/consts/const-promoted-opaque.string.stderr b/tests/ui/consts/const-promoted-opaque.string.stderr
index 33e5f426448ca..b9d5cbf801a80 100644
--- a/tests/ui/consts/const-promoted-opaque.string.stderr
+++ b/tests/ui/consts/const-promoted-opaque.string.stderr
@@ -7,6 +7,12 @@ LL |
 LL | };
    | - value is dropped here
 
+error[E0492]: constants cannot refer to interior mutable data
+  --> $DIR/const-promoted-opaque.rs:32:19
+   |
+LL | const BAZ: &Foo = &FOO;
+   |                   ^^^^ this borrow of an interior mutable value may end up in the final value
+
 error[E0716]: temporary value dropped while borrowed
   --> $DIR/const-promoted-opaque.rs:36:26
    |
@@ -18,7 +24,7 @@ LL |
 LL | }
    | - temporary value is freed at the end of this statement
 
-error: aborting due to 2 previous errors
+error: aborting due to 3 previous errors
 
-Some errors have detailed explanations: E0493, E0716.
-For more information about an error, try `rustc --explain E0493`.
+Some errors have detailed explanations: E0492, E0493, E0716.
+For more information about an error, try `rustc --explain E0492`.
diff --git a/tests/ui/type-alias-impl-trait/reveal_local.rs b/tests/ui/type-alias-impl-trait/reveal_local.rs
index 34f3788e2341b..07fd989b0fa78 100644
--- a/tests/ui/type-alias-impl-trait/reveal_local.rs
+++ b/tests/ui/type-alias-impl-trait/reveal_local.rs
@@ -20,7 +20,7 @@ fn not_gooder() -> Foo {
     // while we could know this from the hidden type, it would
     // need extra roundabout logic to support it.
     is_send::<Foo>();
-    //~^ ERROR: type annotations needed: cannot satisfy `Foo: Send`
+    //~^ ERROR: cannot check whether the hidden type of `reveal_local[9507]::Foo::{opaque#0}` satisfies auto traits
 
     x
 }
diff --git a/tests/ui/type-alias-impl-trait/reveal_local.stderr b/tests/ui/type-alias-impl-trait/reveal_local.stderr
index 9829c58cf73b7..e1b320cc38e31 100644
--- a/tests/ui/type-alias-impl-trait/reveal_local.stderr
+++ b/tests/ui/type-alias-impl-trait/reveal_local.stderr
@@ -16,13 +16,18 @@ note: required by a bound in `is_send`
 LL | fn is_send<T: Send>() {}
    |               ^^^^ required by this bound in `is_send`
 
-error[E0283]: type annotations needed: cannot satisfy `Foo: Send`
+error: cannot check whether the hidden type of `reveal_local[9507]::Foo::{opaque#0}` satisfies auto traits
   --> $DIR/reveal_local.rs:22:15
    |
 LL |     is_send::<Foo>();
    |               ^^^
    |
-   = note: cannot satisfy `Foo: Send`
+   = note: fetching the hidden types of an opaque inside of the defining scope is not supported. You can try moving the opaque type and the item that actually registers a hidden type into a new submodule
+note: opaque type is declared here
+  --> $DIR/reveal_local.rs:5:12
+   |
+LL | type Foo = impl Debug;
+   |            ^^^^^^^^^^
 note: required by a bound in `is_send`
   --> $DIR/reveal_local.rs:7:15
    |
@@ -31,4 +36,3 @@ LL | fn is_send<T: Send>() {}
 
 error: aborting due to 2 previous errors
 
-For more information about this error, try `rustc --explain E0283`.