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-rw-r--r--compiler/rustc_builtin_macros/src/test.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_builtin_macros/src/test.rs b/compiler/rustc_builtin_macros/src/test.rs
index 8f4234b4138..38fdddf5834 100644
--- a/compiler/rustc_builtin_macros/src/test.rs
+++ b/compiler/rustc_builtin_macros/src/test.rs
@@ -541,7 +541,7 @@ fn check_test_signature(
         return Err(sd.emit_err(errors::TestBadFn { span: i.span, cause: span, kind: "unsafe" }));
     }
 
-    if let ast::CoroutineKind::Async { span, .. } = f.sig.header.coro_kind {
+    if let Some(ast::CoroutineKind::Async { span, .. }) = f.sig.header.coro_kind {
         return Err(sd.emit_err(errors::TestBadFn { span: i.span, cause: span, kind: "async" }));
     }