From 8b17afb8b6d39ac38e79c7666ab5450825e802af Mon Sep 17 00:00:00 2001
From: Jaap Frolich <jfrolich@gmail.com>
Date: Mon, 30 Jun 2025 11:27:13 +0200
Subject: [PATCH] Fix non-unicode stderr

---
 src/build/parse.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/build/parse.rs b/src/build/parse.rs
index b4fddd7..bcb60ed 100644
--- a/src/build/parse.rs
+++ b/src/build/parse.rs
@@ -335,8 +335,9 @@ fn generate_ast(
             .output()
             .expect("Error converting .res to .ast"),
     ) {
-        let stderr = std::str::from_utf8(&res_to_ast.stderr).expect("Expect StdErr to be non-null");
-        if helpers::contains_ascii_characters(stderr) {
+        let stderr = String::from_utf8_lossy(&res_to_ast.stderr).to_string();
+
+        if helpers::contains_ascii_characters(&stderr) {
             if res_to_ast.status.success() {
                 Ok((ast_path, Some(stderr.to_string())))
             } else {