How to reproduce:
1. Open the attached "LateError" project (make sure that you don't have IL2CPP playback engine installed)
2. Make sure you have IL2CPP set as Scripting Backend
2. Go to custom "Build" menu item and press "Build Standalone"

Expected result: Error is thrown that IL2CPP playback engine was not found immediately after starting build
Actual result: All scenes are getting built and the build fails only when nearing to the end

Reproducible with - 2018.2.0a4, 2018.1.0b11, 2017.3.1p3, 2017.3.0a1

Fixed in - 2018.2.0a7