Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 16 insertions, 0 deletions

diff --git a/src/test/ui/underscore-lifetime/dyn-trait-underscore.stderr b/src/test/ui/underscore-lifetime/dyn-trait-underscore.stderr
new file mode 100644
index 000000000..60b0b3ee7
--- /dev/null
+++ b/src/test/ui/underscore-lifetime/dyn-trait-underscore.stderr
@@ -0,0 +1,16 @@
+error: lifetime may not live long enough
+  --> $DIR/dyn-trait-underscore.rs:8:5
+   |
+LL | fn a<T>(items: &[T]) -> Box<dyn Iterator<Item=&T>> {
+   |                - let's call the lifetime of this reference `'1`
+LL |     //                      ^^^^^^^^^^^^^^^^^^^^^ bound *here* defaults to `'static`
+LL |     Box::new(items.iter())
+   |     ^^^^^^^^^^^^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static`
+   |
+help: to declare that the trait object captures data from argument `items`, you can add an explicit `'_` lifetime bound
+   |
+LL | fn a<T>(items: &[T]) -> Box<dyn Iterator<Item=&T> + '_> {
+   |                                                   ++++
+
+error: aborting due to previous error
+