zig build play fails - windows on zig master

[kevinw]

C:\Users\Kevin\src\zig-vulkan-triangle>zig build run
reached unreachable code
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\debug\index.zig:114:9: 0x7ff611941029 in assert (build.obj)
    if (!ok) {
        ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\os\windows\util.zig:42:31: 0x7ff611958822 in windowsClose (build.obj)
    assert(windows.CloseHandle(handle) != 0);
                              ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\os\index.zig:221:35: 0x7ff6119484d7 in close (build.obj)
        windows_util.windowsClose(handle);
                                  ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\os\child_process.zig:257:69: 0x7ff611983472 in ChildProcess::ChildProcess_waitUnwrappedWindows (build.obj)
            if (windows.GetExitCodeProcess(self.handle, &exit_code) == 0) {
                                                                    ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\os\child_process.zig:230:17: 0x7ff611983206 in ChildProcess::ChildProcess_waitWindows (build.obj)
            self.cleanupStreams();
                ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\os\child_process.zig:184:36: 0x7ff61197ed7d in ChildProcess::ChildProcess_wait (build.obj)
            return self.waitWindows();
                                   ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\os\child_process.zig:133:9: 0x7ff61197e71e in ChildProcess::ChildProcess_spawnAndWait (build.obj)
        try self.spawn();
        ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\build.zig:566:66: 0x7ff61197617a in Builder::Builder_spawnChildEnvMap (build.obj)
        const child = os.ChildProcess.init(argv, self.allocator) catch unreachable;
                                                                 ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\build.zig:1933:81: 0x7ff6119721dc in CommandStep::CommandStep_make (build.obj)
        const cwd = if (self.cwd) |cwd| self.builder.pathFromRoot(cwd) else self.builder.build_root;
                                                                                ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\build.zig:2101:29: 0x7ff611969cf0 in Step::Step_make (build.obj)
        if (self.done_flag) return;
                            ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\build.zig:300:37: 0x7ff6119686e8 in Builder::Builder_makeOneStep (build.obj)
                    warn("  {}\n", s.name);
                                    ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\build.zig:297:36: 0x7ff61196867d in Builder::Builder_makeOneStep (build.obj)
        for (s.dependencies.toSlice()) |dep| {
                                   ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\build.zig:297:36: 0x7ff61196867d in Builder::Builder_makeOneStep (build.obj)
        for (s.dependencies.toSlice()) |dep| {
                                   ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\build.zig:297:36: 0x7ff61196867d in Builder::Builder_makeOneStep (build.obj)
        for (s.dependencies.toSlice()) |dep| {
                                   ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\build.zig:255:9: 0x7ff611963399 in Builder::Builder_make (build.obj)
        for (wanted_steps.toSliceConst()) |s| {
        ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\special\build_runner.zig:23:23: 0x7ff611960cd2 in main (build.obj)
    defer arena.deinit();
                      ^
C:\Users\Kevin\AppData\Local\Programs\zig-master\lib\zig\std\special\bootstrap.zig:55:40: 0x7ff61195f93a in ??? (build.obj)
    std.os.windows.ExitProcess(callMain());
                                       ^
???:?:?: 0x7ffc0be53034 in ??? (???)


???:?:?: 0x7ffc0c7e3691 in ??? (???)



Build failed. The following command failed:
C:\Users\Kevin\AppData\Local\zig\stage1\artifact\5nYgf46AdzfqyNPD0yfkdRL72ITsOmmGZmhtNaOE3LykmwB6WnMa3ZNMOA3yMT-M\build.exe C:\Users\Kevin\AppData\Local\Programs\zig-master\zig.exe C:\Users\Kevin\src\zig-vulkan-triangle C:\Users\Kevin\src\zig-vulkan-triangle\zig-cache run