From ea10f8efa1d9515a2ced80a05245c5bd19e55040 Mon Sep 17 00:00:00 2001
From: Niklas Korz <niklas@niklaskorz.de>
Date: Sat, 15 Feb 2025 12:04:48 +0100
Subject: [PATCH] boostrap: skip no_std targets in Std doc step

---
 src/bootstrap/src/core/build_steps/doc.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/bootstrap/src/core/build_steps/doc.rs b/src/bootstrap/src/core/build_steps/doc.rs
index dedcc139ae198..1f0787b9c63b7 100644
--- a/src/bootstrap/src/core/build_steps/doc.rs
+++ b/src/bootstrap/src/core/build_steps/doc.rs
@@ -580,6 +580,10 @@ impl Step for Std {
 
     fn make_run(run: RunConfig<'_>) {
         let crates = compile::std_crates_for_run_make(&run);
+        let target_is_no_std = run.builder.no_std(run.target).unwrap_or(false);
+        if crates.is_empty() && target_is_no_std {
+            return;
+        }
         run.builder.ensure(Std {
             stage: run.builder.top_stage,
             target: run.target,