if let Some(ref s) = sess.opts.crate_name {
if let Some((attr, name)) = attr_crate_name {
if name.as_str() != *s {
- let msg = format!("--crate-name and #[crate_name] are \
+ let msg = format!("`--crate-name` and `#[crate_name]` are \
required to match, but `{}` != `{}`",
s, name);
sess.span_err(attr.span, &msg);