Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/ui/test-attrs/test-panic-while-printing.rs b/tests/ui/test-attrs/test-panic-while-printing.rs
new file mode 100644
index 000000000..033c8beb4
--- /dev/null
+++ b/tests/ui/test-attrs/test-panic-while-printing.rs
@@ -0,0 +1,24 @@
+// compile-flags:--test
+// run-pass
+// needs-unwind
+
+use std::fmt;
+use std::fmt::{Display, Formatter};
+
+pub struct A(Vec<u32>);
+
+impl Display for A {
+    fn fmt(&self, _f: &mut Formatter<'_>) -> fmt::Result {
+        self.0[0];
+        Ok(())
+    }
+}
+
+#[test]
+fn main() {
+    let result = std::panic::catch_unwind(|| {
+        let a = A(vec![]);
+        eprintln!("{}", a);
+    });
+    assert!(result.is_err());
+}