WIP

Author: Kobzol

src/bootstrap/src/core/build_steps/tool.rs

@@ -656,7 +656,6 @@ impl Step for Rustdoc {
             features.as_slice(),
         );
         cargo.env("CARGO_PROFILE_RELEASE_LTO", "thin");
-        cargo.env("CARGO_PROFILE_RELEASE_CODEGEN_UNITS", "1");
 
         let _guard = builder.msg_tool(
             Kind::Build,