{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"Err(ModuleError::IncompatibleSignature(_,"}]}
        Err(ModuleError::IncompatibleSignature(_, prev_sig, new_sig)) => tcx.dcx().fatal(format!(
        )),
            "attempt to declare `{name}` with signature {new_sig:?}, \