Index: tests/pybin/tools.py
===================================================================
--- tests/pybin/tools.py	(revision 75baaa35569f47bf9566e024b034eb7a2db52c19)
+++ tests/pybin/tools.py	(revision 080b0a1b9ea6f8e025d73f5d4a94ea745e9646f8)
@@ -73,5 +73,5 @@
 					)
 
-					return proc.returncode, out.decode("utf-8") if out else None
+					return proc.returncode, out.decode("latin-1") if out else None
 				except subprocess.TimeoutExpired:
 					if settings.timeout2gdb: