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-rw-r--r--src/test/compile-fail/E0221.rs6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/test/compile-fail/E0221.rs b/src/test/compile-fail/E0221.rs
index 213ec5a0488..c67bfb822c0 100644
--- a/src/test/compile-fail/E0221.rs
+++ b/src/test/compile-fail/E0221.rs
@@ -18,7 +18,11 @@ trait Foo {
 trait Bar : Foo {
     type A: T2;
     fn do_something() {
-        let _: Self::A; //~ ERROR E0221
+        let _: Self::A; 
+        //~^ ERROR E0221
+        //~| NOTE ambiguous associated type `A`
+        //~| NOTE associated type `Self` could derive from `Foo`
+        //~| NOTE associated type `Self` could derive from `Bar`
     }
 }