1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/lint/future-incompat-json-test.rs b/tests/ui/lint/future-incompat-json-test.rs
new file mode 100644
index 000000000..6ccd67029
--- /dev/null
+++ b/tests/ui/lint/future-incompat-json-test.rs
@@ -0,0 +1,10 @@
+// compile-flags: -Zfuture-incompat-test --json=future-incompat --error-format=json
+// check-pass
+
+// The `-Zfuture-incompat-test flag causes any normal warning to be included
+// in the future-incompatible report. The stderr output here should mention
+// the future incompatible report (as extracted by compiletest).
+
+fn main() {
+    let x = 1;
+}