Invoke attributes on the statement for statement items

compiler/rustc_expand/src/base.rs

@@ -234,6 +234,15 @@ impl Annotatable {
 
     pub fn derive_allowed(&self) -> bool {
         match *self {
+            Annotatable::Stmt(ref stmt) => match stmt.kind {
+                ast::StmtKind::Item(ref item) => match item.kind {
+                    ast::ItemKind::Struct(..)
+                    | ast::ItemKind::Enum(..)
+                    | ast::ItemKind::Union(..) => true,
+                    _ => false,
+                },
+                _ => false,
+            },
             Annotatable::Item(ref item) => match item.kind {
                 ast::ItemKind::Struct(..) | ast::ItemKind::Enum(..) | ast::ItemKind::Union(..) => {
                     true