1 files changed, 48 insertions, 0 deletions
diff --git a/src/test/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr b/src/test/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr
new file mode 100644
index 000000000..ac49e04e3
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+++ b/src/test/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr
@@ -0,0 +1,48 @@
+error[E0277]: can't compare `PriorityQueue<T>` with `PriorityQueue<T>`
+  --> $DIR/issue-104884-trait-impl-sugg-err.rs:13:10
+   |
+LL | #[derive(PartialOrd, AddImpl)]
+   |          ^^^^^^^^^^ no implementation for `PriorityQueue<T> == PriorityQueue<T>`
+   |
+   = help: the trait `PartialEq` is not implemented for `PriorityQueue<T>`
+note: required by a bound in `PartialOrd`
+  --> $SRC_DIR/core/src/cmp.rs:LL:COL
+   |
+LL | pub trait PartialOrd<Rhs: ?Sized = Self>: PartialEq<Rhs> {
+   |                                           ^^^^^^^^^^^^^^ required by this bound in `PartialOrd`
+   = note: this error originates in the derive macro `PartialOrd` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0277]: the trait bound `PriorityQueue<T>: Eq` is not satisfied
+  --> $DIR/issue-104884-trait-impl-sugg-err.rs:13:22
+   |
+LL | #[derive(PartialOrd, AddImpl)]
+   |                      ^^^^^^^ the trait `Eq` is not implemented for `PriorityQueue<T>`
+   |
+note: required by a bound in `Ord`
+  --> $SRC_DIR/core/src/cmp.rs:LL:COL
+   |
+LL | pub trait Ord: Eq + PartialOrd<Self> {
+   |                ^^ required by this bound in `Ord`
+   = note: this error originates in the derive macro `AddImpl` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0277]: can't compare `T` with `T`
+  --> $DIR/issue-104884-trait-impl-sugg-err.rs:13:22
+   |
+LL | #[derive(PartialOrd, AddImpl)]
+   |                      ^^^^^^^ no implementation for `T < T` and `T > T`
+   |
+note: required for `PriorityQueue<T>` to implement `PartialOrd`
+  --> $DIR/issue-104884-trait-impl-sugg-err.rs:13:10
+   |
+LL | #[derive(PartialOrd, AddImpl)]
+   |          ^^^^^^^^^^
+note: required by a bound in `Ord`
+  --> $SRC_DIR/core/src/cmp.rs:LL:COL
+   |
+LL | pub trait Ord: Eq + PartialOrd<Self> {
+   |                     ^^^^^^^^^^^^^^^^ required by this bound in `Ord`
+   = note: this error originates in the derive macro `AddImpl` which comes from the expansion of the derive macro `PartialOrd` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to 3 previous errors
+
+For more information about this error, try `rustc --explain E0277`.