diff options
Diffstat (limited to 'src/libsyntax/ext/deriving/mod.rs')
| -rw-r--r-- | src/libsyntax/ext/deriving/mod.rs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/libsyntax/ext/deriving/mod.rs b/src/libsyntax/ext/deriving/mod.rs index 43a0e0606f8..6040d4ee547 100644 --- a/src/libsyntax/ext/deriving/mod.rs +++ b/src/libsyntax/ext/deriving/mod.rs @@ -121,9 +121,9 @@ pub fn expand_meta_derive(cx: &mut ExtCtxt, ref tname => { cx.span_err(titem.span, - format!("unknown `derive` \ + &format!("unknown `derive` \ trait: `{}`", - *tname).index(&FullRange)); + *tname)[]); } }; } |