Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/ui/panic-while-printing.rs b/tests/ui/panic-while-printing.rs
new file mode 100644
index 000000000..3abedf2a7
--- /dev/null
+++ b/tests/ui/panic-while-printing.rs
@@ -0,0 +1,25 @@
+// run-pass
+// needs-unwind
+
+#![feature(internal_output_capture)]
+
+use std::fmt;
+use std::fmt::{Display, Formatter};
+use std::io::set_output_capture;
+use std::sync::{Arc, Mutex};
+
+pub struct A;
+
+impl Display for A {
+    fn fmt(&self, _f: &mut Formatter<'_>) -> fmt::Result {
+        panic!();
+    }
+}
+
+fn main() {
+    set_output_capture(Some(Arc::new(Mutex::new(Vec::new()))));
+    assert!(std::panic::catch_unwind(|| {
+        eprintln!("{}", A);
+    })
+    .is_err());
+}