From 83024a8a2636742783c581dc51ec99f1bfce9f76 Mon Sep 17 00:00:00 2001
From: UebelAndre <github@uebelandre.com>
Date: Wed, 17 Nov 2021 06:52:13 -0800
Subject: [PATCH] Fixed missing `cc_toolchain` issues for `rust_doc` rules

---
 rust/private/rustdoc.bzl | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/rust/private/rustdoc.bzl b/rust/private/rustdoc.bzl
index 798e135b0e..eab9ced17c 100644
--- a/rust/private/rustdoc.bzl
+++ b/rust/private/rustdoc.bzl
@@ -306,9 +306,13 @@ rust_doc = rule(
         ),
     },
     fragments = ["cpp"],
+    host_fragments = ["cpp"],
     outputs = {
         "rust_doc_zip": "%{name}.zip",
     },
-    toolchains = [str(Label("//rust:toolchain"))],
+    toolchains = [
+        str(Label("//rust:toolchain")),
+        "@bazel_tools//tools/cpp:toolchain_type",
+    ],
     incompatible_use_toolchain_transition = True,
 )