thread '<unnamed>' panicked at core\src\panicking.rs:221:5:
unsafe precondition(s) violated: slice::from_raw_parts requires the pointer to be aligned and non-null, and the total size of the slice not to exceed `isize::MAX` 
stack backtrace:
   0:     0x7ffecd39f634 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4077fc0fe8c62435
   1:     0x7ffecd3d1d29 - core::fmt::write::hdb973a1456393b37
   2:     0x7ffecd3952c7 - <std::io::IoSlice as core::fmt::Debug>::fmt::h1992b867037fe997
   3:     0x7ffecd3a2749 - std::panicking::default_hook::hf81316ed59dcc08a
   4:     0x7ffecd3a22cc - std::panicking::default_hook::hf81316ed59dcc08a
   5:     0x7ffecd3a3122 - std::panicking::rust_panic_with_hook::hcef1bbb3166ab091
   6:     0x7ffecd3a2f2f - <std::panicking::begin_panic_handler::StaticStrPayload as core::fmt::Display>::fmt::h1ebfdc6fbee5d2bf
   7:     0x7ffecd3a00ef - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4077fc0fe8c62435
   8:     0x7ffecd3a2b76 - rust_begin_unwind
   9:     0x7ffecd3f59ad - core::panicking::panic_nounwind_fmt::h73093ff3d9dabf81
  10:     0x7ffecd3f5a53 - core::panicking::panic_nounwind::h29afdbbed3a6d728
  11:     0x7ffeccfad938 - core::slice::<impl [T]>::last_mut::h436cfb86c57806f7
  12:     0x7ffeccfa7f93 - <alloc::vec::Vec<T,A> as core::ops::deref::Deref>::deref::hb95fc1de1b7f2316
  13:     0x7ffecd12f245 - egui::context::ContextImpl::viewport_id::h856ca71316e47b1f
  14:     0x7ffecd12f37c - egui::context::ContextImpl::viewport::h49229331c4a7e167
  15:     0x7ffecd150ca6 - egui::context::Context::output_mut::{{closure}}::hea5f848e860593b6
  16:     0x7ffecd1368e8 - egui::context::Context::write::h1a384678f837bebd
  17:     0x7ffecd150b46 - egui::context::Context::output_mut::{{closure}}::hea5f848e860593b6
  18:     0x7ffecd15ca66 - egui::context::Context::available_rect::h9fd275919be32f05
  19:     0x7ffecca8288f - egui::containers::panel::SidePanel::show_dyn::h8217436079bc5fe5
  20:     0x7ffecca827bb - egui::containers::panel::SidePanel::show::h049df22234820a0f
  21:     0x7ffecca83155 - render
  22:     0x7ff637db598f - e_test::impl$1::update
                               at D:\Rust\e_test\src\main.rs:30
  23:     0x7ff637dcbf9c - eframe::native::epi_integration::impl$0::update::closure$0
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\epi_integration.rs:283
  24:     0x7ff637dbff71 - egui::context::Context::run<eframe::native::epi_integration::impl$0::update::closure_env$0>
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\egui\src\context.rs:767
  25:     0x7ff637dcbbc4 - eframe::native::epi_integration::EpiIntegration::update
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\epi_integration.rs:276
  26:     0x7ff637df5031 - eframe::native::glow_integration::GlowWinitRunning::run_ui_and_paint
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\glow_integration.rs:601
  27:     0x7ff637df363b - eframe::native::glow_integration::impl$1::run_ui_and_paint
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\glow_integration.rs:395
  28:     0x7ff637dcd56f - eframe::native::run::impl$0::handle_event_result::closure$0<eframe::native::glow_integration::GlowWinitApp>
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\run.rs:95
  29:     0x7ff637dbfb63 - enum2$<core::result::Result<enum2$<eframe::native::winit_integration::EventResult>,enum2$<eframe::Error> > >::and_then<enum2$<eframe::native::winit_integration::EventResult>,enum2$<eframe::Error>,enum2$<eframe::native::winit_integration::EventResult>,efram
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\core\src\result.rs:1346
  30:     0x7ff637dccaa7 - eframe::native::run::WinitAppWrapper<eframe::native::glow_integration::GlowWinitApp>::handle_event_result<eframe::native::glow_integration::GlowWinitApp>
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\run.rs:84
  31:     0x7ff637dcdf0a - eframe::native::run::impl$1::resumed::closure$0<eframe::native::glow_integration::GlowWinitApp>
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\run.rs:192
  32:     0x7ff637dd7186 - eframe::native::event_loop_context::with_event_loop_context<eframe::native::run::impl$1::resumed::closure_env$0<eframe::native::glow_integration::GlowWinitApp> >
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\event_loop_context.rs:53
  33:     0x7ff637dcdeac - eframe::native::run::impl$1::resumed<eframe::native::glow_integration::GlowWinitApp>
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\run.rs:190
  34:     0x7ff637dea6c1 - winit::event_loop::dispatch_event_for_app
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\event_loop.rs:646
  35:     0x7ff637dea6c1 - winit::platform::run_on_demand::EventLoopExtRunOnDemand::run_app_on_demand::closure$0<winit::event_loop::EventLoop<enum2$<eframe::native::winit_integration::UserEvent> >,eframe::native::run::WinitAppWrapper<eframe::native::glow_integration::GlowWinitApp> >
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform\run_on_demand.rs:76
  36:     0x7ff637dbb7e9 - winit::platform_impl::windows::event_loop::impl$3::run_on_demand::closure$0<enum2$<eframe::native::winit_integration::UserEvent>,winit::platform::run_on_demand::EventLoopExtRunOnDemand::run_app_on_demand::closure_env$0<winit::event_loop::EventLoop<enum2$<e
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform_impl\windows\event_loop.rs:253        
  37:     0x7ff63805f758 - alloc::boxed::impl$49::call_mut<tuple$<enum2$<winit::event::Event<winit::platform_impl::windows::event_loop::UserEventPlaceholder> > >,dyn$<core::ops::function::FnMut<tuple$<enum2$<winit::event::Event<winit::platform_impl::windows::event_loop::UserEventPla
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\alloc\src\boxed.rs:2249
  38:     0x7ff6380242fc - winit::platform_impl::windows::event_loop::runner::impl$3::call_event_handler::closure$0<winit::platform_impl::windows::event_loop::UserEventPlaceholder>
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform_impl\windows\event_loop\runner.rs:236 
  39:     0x7ff63801bf24 - core::panic::unwind_safe::impl$25::call_once<tuple$<>,winit::platform_impl::windows::event_loop::runner::impl$3::call_event_handler::closure_env$0<winit::platform_impl::windows::event_loop::UserEventPlaceholder> >
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\core\src\panic\unwind_safe.rs:272
  40:     0x7ff6380283e4 - std::panicking::try::do_call<core::panic::unwind_safe::AssertUnwindSafe<winit::platform_impl::windows::event_loop::runner::impl$3::call_event_handler::closure_env$0<winit::platform_impl::windows::event_loop::UserEventPlaceholder> >,tuple$<> >
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\std\src\panicking.rs:554
  41:     0x7ff63803f8a3 - winit::platform_impl::windows::window::TASKBAR_LIST2::constant$0::closure$1
  42:     0x7ff63803716a - std::panicking::try
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\std\src\panicking.rs:518
  43:     0x7ff63803716a - std::panic::catch_unwind<core::panic::unwind_safe::AssertUnwindSafe<winit::platform_impl::windows::event_loop::runner::impl$3::call_event_handler::closure_env$0<winit::platform_impl::windows::event_loop::UserEventPlaceholder> >,tuple$<> >
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\std\src\panic.rs:345
  44:     0x7ff638022b1f - winit::platform_impl::windows::event_loop::runner::EventLoopRunner<winit::platform_impl::windows::event_loop::UserEventPlaceholder>::catch_unwind<winit::platform_impl::windows::event_loop::UserEventPlaceholder,tuple$<>,winit::platform_impl::windows::event_
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform_impl\windows\event_loop\runner.rs:173 
  45:     0x7ff6380241fb - winit::platform_impl::windows::event_loop::runner::EventLoopRunner<winit::platform_impl::windows::event_loop::UserEventPlaceholder>::call_event_handler<winit::platform_impl::windows::event_loop::UserEventPlaceholder>
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform_impl\windows\event_loop\runner.rs:230 
  46:     0x7ff637dc8e76 - winit::platform_impl::windows::event_loop::runner::EventLoopRunner<winit::platform_impl::windows::event_loop::UserEventPlaceholder>::call_new_events<winit::platform_impl::windows::event_loop::UserEventPlaceholder>
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform_impl\windows\event_loop\runner.rs:355 
  47:     0x7ff637dc88e7 - winit::platform_impl::windows::event_loop::runner::EventLoopRunner<winit::platform_impl::windows::event_loop::UserEventPlaceholder>::move_state_to<winit::platform_impl::windows::event_loop::UserEventPlaceholder>
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform_impl\windows\event_loop\runner.rs:294 
  48:     0x7ff637dc8707 - winit::platform_impl::windows::event_loop::runner::EventLoopRunner<winit::platform_impl::windows::event_loop::UserEventPlaceholder>::prepare_wait<winit::platform_impl::windows::event_loop::UserEventPlaceholder>
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform_impl\windows\event_loop\runner.rs:201 
  49:     0x7ff637dbbeee - winit::platform_impl::windows::event_loop::EventLoop<enum2$<eframe::native::winit_integration::UserEvent> >::wait_and_dispatch_message<enum2$<eframe::native::winit_integration::UserEvent> >
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform_impl\windows\event_loop.rs:398        
  50:     0x7ff637dbb361 - winit::platform_impl::windows::event_loop::EventLoop<enum2$<eframe::native::winit_integration::UserEvent> >::run_on_demand<enum2$<eframe::native::winit_integration::UserEvent>,winit::platform::run_on_demand::EventLoopExtRunOnDemand::run_app_on_demand::clos
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform_impl\windows\event_loop.rs:259        
  51:     0x7ff637de6954 - winit::platform::run_on_demand::impl$0::run_on_demand<enum2$<eframe::native::winit_integration::UserEvent>,winit::platform::run_on_demand::EventLoopExtRunOnDemand::run_app_on_demand::closure_env$0<winit::event_loop::EventLoop<enum2$<eframe::native::winit_i
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform\run_on_demand.rs:89
  52:     0x7ff637dea4fb - winit::platform::run_on_demand::EventLoopExtRunOnDemand::run_app_on_demand<winit::event_loop::EventLoop<enum2$<eframe::native::winit_integration::UserEvent> >,eframe::native::run::WinitAppWrapper<eframe::native::glow_integration::GlowWinitApp> >
                               at D:\rust_src\.cargo\registry\src\index.crates.io-6f17d22bba15001f\winit-0.30.5\src\platform\run_on_demand.rs:75
  53:     0x7ff637dceb45 - eframe::native::run::run_and_return<eframe::native::glow_integration::GlowWinitApp>
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\run.rs:295
  54:     0x7ff637dcf694 - eframe::native::run::run_glow::closure$0
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\run.rs:327
  55:     0x7ff637dcc6a5 - eframe::native::run::with_event_loop::closure$0<enum2$<core::result::Result<tuple$<>,enum2$<eframe::Error> > >,eframe::native::run::run_glow::closure_env$0>
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\run.rs:52
  56:     0x7ff637dd0d04 - std::thread::local::LocalKey<core::cell::RefCell<enum2$<core::option::Option<winit::event_loop::EventLoop<enum2$<eframe::native::winit_integration::UserEvent> > > > > >::try_with<core::cell::RefCell<enum2$<core::option::Option<winit::event_loop::EventLoop<
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\std\src\thread\local.rs:283
  57:     0x7ff637dd07c3 - std::thread::local::LocalKey<core::cell::RefCell<enum2$<core::option::Option<winit::event_loop::EventLoop<enum2$<eframe::native::winit_integration::UserEvent> > > > > >::with<core::cell::RefCell<enum2$<core::option::Option<winit::event_loop::EventLoop<enum
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\std\src\thread\local.rs:260
  58:     0x7ff637dcc530 - eframe::native::run::with_event_loop<enum2$<core::result::Result<tuple$<>,enum2$<eframe::Error> > >,eframe::native::run::run_glow::closure_env$0>
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\run.rs:42
  59:     0x7ff637dcf27a - eframe::native::run::run_glow
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\native\run.rs:325
  60:     0x7ff637dcf89c - eframe::run_native
                               at D:\rust_src\.cargo\git\checkouts\egui-5e4507fa4153be06\0faab82\crates\eframe\src\lib.rs:259
  61:     0x7ff637db5c2f - e_test::main
                               at D:\Rust\e_test\src\main.rs:47
  62:     0x7ff637db3e2b - core::ops::function::FnOnce::call_once<void (*)(),tuple$<> >
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\core\src\ops\function.rs:250
  63:     0x7ff637db44de - core::hint::black_box
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\core\src\hint.rs:388
  64:     0x7ff637db44de - std::sys::backtrace::__rust_begin_short_backtrace<void (*)(),tuple$<> >
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\std\src\sys\backtrace.rs:154
  65:     0x7ff637db3c91 - std::rt::lang_start::closure$0<tuple$<> >
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\std\src\rt.rs:164
  66:     0x7ff63832de29 - std::rt::lang_start_internal::closure$2
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library/std\src\rt.rs:143
  67:     0x7ff63832de29 - std::panicking::try::do_call
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library/std\src\panicking.rs:554
  68:     0x7ff63832de29 - std::panicking::try
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library/std\src\panicking.rs:518
  69:     0x7ff63832de29 - std::panic::catch_unwind
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library/std\src\panic.rs:345
  70:     0x7ff63832de29 - std::rt::lang_start_internal
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library/std\src\rt.rs:143
  71:     0x7ff637db3c6a - std::rt::lang_start<tuple$<> >
                               at /rustc/515395af0efdbdd657ff08a1f6d28e553856654f\library\std\src\rt.rs:163
  72:     0x7ff637db5ec9 - main