1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/issue-81899.rs b/src/test/ui/borrowck/issue-81899.rs
new file mode 100644
index 000000000..9b6061203
--- /dev/null
+++ b/src/test/ui/borrowck/issue-81899.rs
@@ -0,0 +1,15 @@
+// Regression test for #81899.
+// The `panic!()` below is important to trigger the fixed ICE.
+
+const _CONST: &[u8] = &f(&[], |_| {});
+//~^ ERROR any use of this value
+//~| WARNING this was previously
+
+const fn f<F>(_: &[u8], _: F) -> &[u8]
+where
+    F: FnMut(&u8),
+{
+    panic!() //~ ERROR: evaluation of constant value failed
+}
+
+fn main() {}