4 files changed, 49 insertions, 4 deletions
diff --git a/tests/ui/traits/trait-upcasting/lifetime.rs b/tests/ui/traits/trait-upcasting/lifetime.rs
index 9825158c2dd..6486ec3891c 100644
--- a/tests/ui/traits/trait-upcasting/lifetime.rs
+++ b/tests/ui/traits/trait-upcasting/lifetime.rs
@@ -7,7 +7,7 @@ trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync {
         10
     }
 
-    fn z(&self) -> i32 {
+    fn z(&self) -> i32 { //~ WARN methods `z` and `y` are never used
         11
     }
 
@@ -21,7 +21,7 @@ trait Bar: Foo {
         20
     }
 
-    fn w(&self) -> i32 {
+    fn w(&self) -> i32 { //~ WARN method `w` is never used
         21
     }
 }
diff --git a/tests/ui/traits/trait-upcasting/lifetime.stderr b/tests/ui/traits/trait-upcasting/lifetime.stderr
new file mode 100644
index 00000000000..ca8f9cf63f3
--- /dev/null
+++ b/tests/ui/traits/trait-upcasting/lifetime.stderr
@@ -0,0 +1,25 @@
+warning: methods `z` and `y` are never used
+  --> $DIR/lifetime.rs:10:8
+   |
+LL | trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync {
+   |       --- methods in this trait
+...
+LL |     fn z(&self) -> i32 {
+   |        ^
+...
+LL |     fn y(&self) -> i32 {
+   |        ^
+   |
+   = note: `#[warn(dead_code)]` on by default
+
+warning: method `w` is never used
+  --> $DIR/lifetime.rs:24:8
+   |
+LL | trait Bar: Foo {
+   |       --- method in this trait
+...
+LL |     fn w(&self) -> i32 {
+   |        ^
+
+warning: 2 warnings emitted
+
diff --git a/tests/ui/traits/trait-upcasting/replace-vptr.rs b/tests/ui/traits/trait-upcasting/replace-vptr.rs
index 9ccfc9306ac..5ef65786bb7 100644
--- a/tests/ui/traits/trait-upcasting/replace-vptr.rs
+++ b/tests/ui/traits/trait-upcasting/replace-vptr.rs
@@ -3,7 +3,7 @@
 #![feature(trait_upcasting)]
 
 trait A {
-    fn foo_a(&self);
+    fn foo_a(&self); //~ WARN method `foo_a` is never used
 }
 
 trait B {
@@ -11,7 +11,7 @@ trait B {
 }
 
 trait C: A + B {
-    fn foo_c(&self);
+    fn foo_c(&self); //~ WARN method `foo_c` is never used
 }
 
 struct S(i32);
diff --git a/tests/ui/traits/trait-upcasting/replace-vptr.stderr b/tests/ui/traits/trait-upcasting/replace-vptr.stderr
new file mode 100644
index 00000000000..823094761b3
--- /dev/null
+++ b/tests/ui/traits/trait-upcasting/replace-vptr.stderr
@@ -0,0 +1,20 @@
+warning: method `foo_a` is never used
+  --> $DIR/replace-vptr.rs:6:8
+   |
+LL | trait A {
+   |       - method in this trait
+LL |     fn foo_a(&self);
+   |        ^^^^^
+   |
+   = note: `#[warn(dead_code)]` on by default
+
+warning: method `foo_c` is never used
+  --> $DIR/replace-vptr.rs:14:8
+   |
+LL | trait C: A + B {
+   |       - method in this trait
+LL |     fn foo_c(&self);
+   |        ^^^^^
+
+warning: 2 warnings emitted
+