Reproduction steps:
1. Open the project from the attached 'drive.google.com' link.
2. Go to "File > Build Settings" and remove an empty scene from the "Scenes In Build" list.
3. Select the 'BuildPipeline' asset in the Project view.
4. Set Build to iOS and click Build.
5. Open and build the Xcode project in the project folder > Target > iosbuild.

Actual behavior:
- Crash
- Full call stack attached in the Edit below.

--
* frame #0: 0x0000000101cc6e20 `il2cpp::utils::Debugger::InitializeTypeSourceFileMap() at Debugger.cpp:120 [opt]
frame #1: 0x0000000101cc7188 `il2cpp::utils::Debugger::Start() at Debugger.cpp:146 [opt]
frame #2: 0x0000000101cbfb5c `il2cpp::vm::Runtime::Init(char const*, char const*) + 2576
frame #3: 0x0000000101478e30 `::InitializeIl2CppFromMain() at MonoManager_Il2Cpp.cpp:257 [opt]
frame #4: 0x0000000100e641e8 `::UnityInitApplicationNoGraphics() at LibEntryPoint.mm:177 [opt]
frame #5: 0x00000001000f7b60 `::-[UnityAppController application:didFinishLaunchingWithOptions:](self=0x0000000106d73d20, _cmd=<unavailable>, application=<unavailable>, launchOptions=<unavailable>) at UnityAppController.mm:263 [opt]
--

Reproduced with:
2018.2.0b10

Not reproducible with:
2017.4.6f1, 2018.1.7f1

Note:
- Possibly a regression, but it may be a project compatibility issue with older Unity versions using custom builder.