--- build/config/rust.gni.orig	2022-01-23 11:59:03 UTC
+++ build/config/rust.gni
@@ -66,7 +66,7 @@ toolchain_has_official_rust =
     (!is_nacl &&
      (is_android && (current_cpu == "arm" || current_cpu == "arm64" ||
                      current_cpu == "x64" || current_cpu == "x86"))) ||
-    (is_linux && current_cpu == "x64")
+    (current_os == "linux" && current_cpu == "x64")
 
 toolchain_has_rust =
     enable_rust && (toolchain_has_official_rust || rust_sysroot_absolute != "")