1 files changed, 46 insertions, 0 deletions
diff --git a/src/test/ui/on-unimplemented/no-debug.stderr b/src/test/ui/on-unimplemented/no-debug.stderr
new file mode 100644
index 000000000..1035da54d
--- /dev/null
+++ b/src/test/ui/on-unimplemented/no-debug.stderr
@@ -0,0 +1,46 @@
+error[E0277]: `Foo` doesn't implement `Debug`
+  --> $DIR/no-debug.rs:10:27
+   |
+LL |     println!("{:?} {:?}", Foo, Bar);
+   |                           ^^^ `Foo` cannot be formatted using `{:?}`
+   |
+   = help: the trait `Debug` is not implemented for `Foo`
+   = note: add `#[derive(Debug)]` to `Foo` or manually `impl Debug for Foo`
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider annotating `Foo` with `#[derive(Debug)]`
+   |
+LL | #[derive(Debug)]
+   |
+
+error[E0277]: `Bar` doesn't implement `Debug`
+  --> $DIR/no-debug.rs:10:32
+   |
+LL |     println!("{:?} {:?}", Foo, Bar);
+   |                                ^^^ `Bar` cannot be formatted using `{:?}` because it doesn't implement `Debug`
+   |
+   = help: the trait `Debug` is not implemented for `Bar`
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0277]: `Foo` doesn't implement `std::fmt::Display`
+  --> $DIR/no-debug.rs:11:23
+   |
+LL |     println!("{} {}", Foo, Bar);
+   |                       ^^^ `Foo` cannot be formatted with the default formatter
+   |
+   = help: the trait `std::fmt::Display` is not implemented for `Foo`
+   = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0277]: `Bar` doesn't implement `std::fmt::Display`
+  --> $DIR/no-debug.rs:11:28
+   |
+LL |     println!("{} {}", Foo, Bar);
+   |                            ^^^ `Bar` cannot be formatted with the default formatter
+   |
+   = help: the trait `std::fmt::Display` is not implemented for `Bar`
+   = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to 4 previous errors
+
+For more information about this error, try `rustc --explain E0277`.