1 files changed, 3 insertions, 1 deletions
diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index f9c5837b7d6..cc0e34c6035 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -1064,6 +1064,8 @@ impl Step for RustdocGUI {
                     cargo.env("RUSTDOCFLAGS", "-Zunstable-options --generate-link-to-definition");
                 } else if entry.file_name() == "scrape_examples" {
                     cargo.arg("-Zrustdoc-scrape-examples");
+                } else if entry.file_name() == "extend_css" {
+                    cargo.env("RUSTDOCFLAGS", &format!("--extend-css extra.css"));
                 }
                 builder.run(&mut cargo);
             }
@@ -2146,7 +2148,7 @@ impl Step for Crate {
                 compile::std_cargo(builder, target, compiler.stage, &mut cargo);
             }
             Mode::Rustc => {
-                compile::rustc_cargo(builder, &mut cargo, target);
+                compile::rustc_cargo(builder, &mut cargo, target, compiler.stage);
             }
             _ => panic!("can only test libraries"),
         };