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-rw-r--r--tests/ui/error-codes/E0374.stderr4
-rw-r--r--tests/ui/error-codes/E0377.stderr4
-rw-r--r--tests/ui/invalid_dispatch_from_dyn_impls.stderr4
3 files changed, 9 insertions, 3 deletions
diff --git a/tests/ui/error-codes/E0374.stderr b/tests/ui/error-codes/E0374.stderr
index 68e15e6f8fe..a7792043067 100644
--- a/tests/ui/error-codes/E0374.stderr
+++ b/tests/ui/error-codes/E0374.stderr
@@ -1,8 +1,10 @@
-error[E0374]: the trait `CoerceUnsized` may only be implemented for a coercion between structures with one field being coerced, none found
+error[E0374]: the trait `CoerceUnsized` may only be implemented for a coercion between structures
   --> $DIR/E0374.rs:8:1
    |
 LL | impl<T, U> CoerceUnsized<Foo<U>> for Foo<T>
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: expected a single field to be coerced, none found
 
 error: aborting due to previous error
 
diff --git a/tests/ui/error-codes/E0377.stderr b/tests/ui/error-codes/E0377.stderr
index bf7d8c8d39d..664e499ec23 100644
--- a/tests/ui/error-codes/E0377.stderr
+++ b/tests/ui/error-codes/E0377.stderr
@@ -1,8 +1,10 @@
-error[E0377]: the trait `CoerceUnsized` may only be implemented for a coercion between structures with the same definition; expected `Foo`, found `Bar`
+error[E0377]: the trait `CoerceUnsized` may only be implemented for a coercion between structures
   --> $DIR/E0377.rs:12:1
    |
 LL | impl<T, U> CoerceUnsized<Bar<U>> for Foo<T> where T: CoerceUnsized<U> {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: expected coercion between the same definition; expected `Foo`, found `Bar`
 
 error: aborting due to previous error
 
diff --git a/tests/ui/invalid_dispatch_from_dyn_impls.stderr b/tests/ui/invalid_dispatch_from_dyn_impls.stderr
index b5b32d2f0bd..172ee7ade49 100644
--- a/tests/ui/invalid_dispatch_from_dyn_impls.stderr
+++ b/tests/ui/invalid_dispatch_from_dyn_impls.stderr
@@ -15,11 +15,13 @@ LL | impl<T: ?Sized, U: ?Sized> DispatchFromDyn<MultiplePointers<U>> for Multipl
    = note: the trait `DispatchFromDyn` may only be implemented for a coercion between structures with a single field being coerced
    = note: currently, 2 fields need coercions: `ptr1` (`*const T` to `*const U`), `ptr2` (`*const T` to `*const U`)
 
-error[E0378]: the trait `DispatchFromDyn` may only be implemented for a coercion between structures with a single field being coerced, none found
+error[E0378]: the trait `DispatchFromDyn` may only be implemented for a coercion between structures
   --> $DIR/invalid_dispatch_from_dyn_impls.rs:31:1
    |
 LL | impl<T: ?Sized, U: ?Sized> DispatchFromDyn<NothingToCoerce<T>> for NothingToCoerce<U> {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: expected a single field to be coerced, none found
 
 error[E0378]: structs implementing `DispatchFromDyn` may not have `#[repr(packed)]` or `#[repr(C)]`
   --> $DIR/invalid_dispatch_from_dyn_impls.rs:37:1