1 files changed, 23 insertions, 0 deletions
diff --git a/tests/ui/contracts/contract-captures-via-closure-noncopy.rs b/tests/ui/contracts/contract-captures-via-closure-noncopy.rs
new file mode 100644
index 00000000000..976f64c7fd9
--- /dev/null
+++ b/tests/ui/contracts/contract-captures-via-closure-noncopy.rs
@@ -0,0 +1,23 @@
+//@ compile-flags: -Zcontract-checks=yes
+
+#![feature(contracts)]
+//~^ WARN the feature `contracts` is incomplete and may not be safe to use and/or cause compiler crashes [incomplete_features]
+
+struct Baz {
+    baz: i32
+}
+
+#[track_caller]
+#[core::contracts::requires(x.baz > 0)]
+#[core::contracts::ensures({let old = x; move |ret:&Baz| ret.baz == old.baz*2 })]
+// Relevant thing is this:  ^^^^^^^^^^^
+// because we are capturing state that is non-Copy.
+//~^^^ ERROR trait bound `Baz: std::marker::Copy` is not satisfied
+fn doubler(x: Baz) -> Baz {
+    Baz { baz: x.baz + 10 }
+}
+
+fn main() {
+    assert_eq!(doubler(Baz { baz: 10 }).baz, 20);
+    assert_eq!(doubler(Baz { baz: 100 }).baz, 200);
+}