1 files changed, 5 insertions, 0 deletions
diff --git a/cli/standalone/mod.rs b/cli/standalone/mod.rs
index 32ae771c1..47a660fe1 100644
--- a/cli/standalone/mod.rs
+++ b/cli/standalone/mod.rs
@@ -488,6 +488,11 @@ pub async fn run(
     if metadata.unstable {
       checker.enable_legacy_unstable();
     }
+    for feature in metadata.unstable_features {
+      // `metadata` is valid for the whole lifetime of the program, so we
+      // can leak the string here.
+      checker.enable_feature(feature.leak());
+    }
     checker
   });
   let worker_factory = CliMainWorkerFactory::new(