1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/nll/issue-45157.stderr b/tests/ui/nll/issue-45157.stderr
new file mode 100644
index 000000000..57fd8d49c
--- /dev/null
+++ b/tests/ui/nll/issue-45157.stderr
@@ -0,0 +1,17 @@
+error[E0502]: cannot borrow `u` (via `u.z.c`) as immutable because it is also borrowed as mutable (via `u.s.a`)
+  --> $DIR/issue-45157.rs:27:20
+   |
+LL |         let mref = &mut u.s.a;
+   |                    ---------- mutable borrow occurs here (via `u.s.a`)
+...
+LL |         let nref = &u.z.c;
+   |                    ^^^^^^ immutable borrow of `u.z.c` -- which overlaps with `u.s.a` -- occurs here
+LL |
+LL |         println!("{} {}", mref, nref)
+   |                           ---- mutable borrow later used here
+   |
+   = note: `u.z.c` is a field of the union `U`, so it overlaps the field `u.s.a`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0502`.