From a4f61a09a512763ecbf6a72db0464f906f59f011 Mon Sep 17 00:00:00 2001
From: fufesou <linlong1266@gmail.com>
Date: Sat, 12 Sep 2026 09:11:10 +0800
Subject: [PATCH] Document rustup non-host opt-in requirement

---
 action.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/action.yml b/action.yml
index b667487..00b5d9d 100644
--- a/action.yml
+++ b/action.yml
@@ -18,6 +18,8 @@ inputs:
   components:
     description: Comma-separated list of components to be additionally installed
     required: false
+  # Rustup 1.29.1 requires explicit opt-in for i686 toolchains on x64 Windows.
+  # https://github.com/rust-lang/rustup/pull/4935
   force-non-host:
     description: Allow installing and selecting a toolchain that does not match the host platform
     required: false