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Diffstat (limited to 'src/libsyntax/ext/deriving/mod.rs')
| -rw-r--r-- | src/libsyntax/ext/deriving/mod.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libsyntax/ext/deriving/mod.rs b/src/libsyntax/ext/deriving/mod.rs index 36deaf488e1..c7f582854ae 100644 --- a/src/libsyntax/ext/deriving/mod.rs +++ b/src/libsyntax/ext/deriving/mod.rs @@ -105,6 +105,7 @@ fn expand_derive(cx: &mut ExtCtxt, feature_gate::emit_feature_err(&cx.parse_sess.span_diagnostic, "custom_derive", titem.span, + feature_gate::GateIssue::Language, feature_gate::EXPLAIN_CUSTOM_DERIVE); continue; } |