1 files changed, 10 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-38412.rs b/src/test/ui/issues/issue-38412.rs
new file mode 100644
index 000000000..96bd93af5
--- /dev/null
+++ b/src/test/ui/issues/issue-38412.rs
@@ -0,0 +1,10 @@
+fn main() {
+    let Box(a) = loop { };
+    //~^ ERROR cannot match against a tuple struct which contains private fields
+
+    // (The below is a trick to allow compiler to infer a type for
+    // variable `a` without attempting to ascribe a type to the
+    // pattern or otherwise attempting to name the Box type, which
+    // would run afoul of issue #22207)
+    let _b: *mut i32 = *a;
+}