Debug midi build

tests/conftest.py

@@ -50,4 +50,7 @@ def build_midi():
     result = subprocess.run(cmd, capture_output=True, text=True, shell=True)
     all_build_success = result.returncode
 
+    with open("midi_build.txt", "wt") as mb:
+        mb.write(str(result))
+
     return str(Path(__file__).parent / f"test_midi/bin/") if all_build_success == 0 else False