thread 1385711 panic: reached unreachable code
/home/user/zig/lib/std/debug.zig:403:14: 0x10b636d in assert (build)
    if (!ok) unreachable; // assertion failure
             ^
/home/user/zig/lib/std/Build/Cache.zig:896:15: 0x11ec1bd in writeManifest (build)
        assert(self.have_exclusive_lock);
              ^
/home/user/zig/lib/std/Build/Step.zig:554:26: 0x11ecb69 in writeManifest (build)
        man.writeManifest() catch |err| {
                         ^
/home/user/zig/lib/std/Build/Step/Run.zig:713:31: 0x1186f98 in make (build)
        try step.writeManifest(&man);
                              ^
/home/user/zig/lib/std/Build/Step.zig:182:13: 0x11390be in make (build)
    s.makeFn(s, prog_node) catch |err| switch (err) {
            ^
/home/user/zig/lib/compiler/build_runner.zig:948:31: 0x10f385d in workerMakeOneStep (build)
    const make_result = s.make(&sub_prog_node);
                              ^
/home/user/zig/lib/std/Thread/Pool.zig:102:39: 0x10f41f2 in runFn (build)
            @call(.auto, func, closure.arguments);
                                      ^
/home/user/zig/lib/std/Thread/Pool.zig:191:18: 0x115fd64 in worker (build)
            runFn(&run_node.data);
                 ^
/home/user/zig/lib/std/Thread.zig:408:13: 0x1137b7d in callFn__anon_14474 (build)
            @call(.auto, f, args);
            ^
/home/user/zig/lib/std/Thread.zig:1226:30: 0x10f3087 in entryFn (build)
                return callFn(f, self.fn_args);
                             ^
/home/user/zig/lib/c.zig:239:13: 0x12a4400 in clone (c)
            asm volatile (
            ^