ensure existence of the tool crate dir before linking

Signed-off-by: onur-ozkan <work@onurozkan.dev>

Author: onur-ozkan

src/bootstrap/src/core/build_steps/doc.rs

@@ -829,12 +829,12 @@ macro_rules! tool_doc {
                     builder.stage_out(compiler, Mode::ToolRustc).join("doc"),
                 ];
 
-                $(for krate in $crates {
-                    let dir_name = krate.replace("-", "_");
-                    t!(fs::create_dir_all(&out.join(dir_name)));
-                })?
-
                 for out_dir in out_dirs {
+                    $(for krate in $crates {
+                        let dir_name = krate.replace("-", "_");
+                        t!(fs::create_dir_all(&out_dir.join(dir_name)));
+                    })?
+
                     symlink_dir_force(&builder.config, &out, &out_dir);
                 }