fn wrap_return(diag: &rustc_errors::Handler, res: Result<(), String>) -> MainResult {
match res {
- Ok(()) => Ok(()),
+ Ok(()) => diag.has_errors().map_or(Ok(()), Err),
Err(err) => {
let reported = diag.struct_err(&err).emit();
Err(reported)
tcx: TyCtxt<'tcx>,
) -> MainResult {
match formats::run_format::<T>(krate, renderopts, cache, tcx) {
- Ok(_) => Ok(()),
+ Ok(_) => tcx.sess.has_errors().map_or(Ok(()), Err),
Err(e) => {
let mut msg =
tcx.sess.struct_err(&format!("couldn't generate documentation: {}", e.error));