Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 19 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-27592.rs b/tests/ui/issues/issue-27592.rs
new file mode 100644
index 000000000..88f70f584
--- /dev/null
+++ b/tests/ui/issues/issue-27592.rs
@@ -0,0 +1,19 @@
+// Regression test for issue #27592.
+
+fn write<'a, F: ::std::ops::FnOnce()->::std::fmt::Arguments<'a> + 'a>(fcn: F) {
+    use std::fmt::Write;
+    let _ = match fcn() { a => write!(&mut Stream, "{}", a), };
+}
+
+struct Stream;
+impl ::std::fmt::Write for Stream {
+    fn write_str(&mut self, _s: &str) -> ::std::fmt::Result {
+        Ok( () )
+    }
+}
+
+fn main() {
+    write(|| format_args!("{}", String::from("Hello world")));
+    //~^ ERROR cannot return value referencing temporary value
+    //~| ERROR cannot return reference to temporary value
+}