Intermittent SIGBUS when spawning viewer from python

[jleibs]

A user reported an intermittent crash when spawning the viewer from python on 0.16:

Rerun caught a signal: SIGBUS
Troubleshooting Rerun: https://www.rerun.io/docs/getting-started/troubleshooting 
Report bugs: https://github.com/rerun-io/rerun/issues 

[2024-06-02T22:05:44Z INFO  re_sdk_comms::server] Hosting a SDK server over TCP at 0.0.0.0:9876. Connect with the Rerun logging SDK.
[2024-06-02T22:05:44Z INFO  re_sdk_comms::server] New SDK client connected: 127.0.0.1:58043
[2024-06-02T22:05:44Z INFO  re_sdk_comms::server] New SDK client connected: 127.0.0.1:58044
   3: re_crash_handler::install_signal_handler::signal_handler
   4: __simple_esappend
   5: std::sys::common::thread_local::fast_local::Key<T>::try_initialize
   6: crossbeam_deque::deque::Stealer<T>::steal
   7: rayon_core::registry::WorkerThread::wait_until_cold
   8: rayon_core::registry::ThreadBuilder::run


Rerun caught a signal: SIGBUS
Troubleshooting Rerun: https://www.rerun.io/docs/getting-started/troubleshooting 
Report bugs: https://github.com/rerun-io/rerun/issues 

[weidenka]

Some here on a Silicon Mac with MacOS 14.5 and rerun-sdk-0.16.1.

Rerun caught a signal: SIGBUS
Troubleshooting Rerun: https://www.rerun.io/docs/getting-started/troubleshooting
Report bugs: https://github.com/rerun-io/rerun/issues

   3: re_crash_handler::install_signal_handler::signal_handler
   4: __simple_esappend
   5: <unknown>
   6: <unknown>
   7: <unknown>
   8: <unknown>
   9: <unknown>
  10: <unknown>
  11: <unknown>
  12: <unknown>
  13: <unknown>
  14: <unknown>
  15: <unknown>
  16: eframe::native::app_icon::AppTitleIconSetter::update
  17: <eframe::native::wgpu_integration::WgpuWinitApp as eframe::native::winit_integration::WinitApp>::run_ui_and_paint
  18: eframe::native::run::run_and_return::{{closure}}


Rerun caught a signal: SIGBUS
Troubleshooting Rerun: https://www.rerun.io/docs/getting-started/troubleshooting
Report bugs: https://github.com/rerun-io/rerun/issues

[SeaOtocinclus]

Got another one (rerun viewer was not open)

Rerun caught a signal: SIGBUS
Troubleshooting Rerun: https://www.rerun.io/docs/getting-started/troubleshooting 
Report bugs: https://github.com/rerun-io/rerun/issues 

   3: re_crash_handler::install_signal_handler::signal_handler
   4: __simple_esappend
   5: crossbeam_epoch::sync::once_lock::OnceLock<T>::initialize
   6: crossbeam_epoch::sync::once_lock::OnceLock<T>::initialize


Rerun caught a signal: SIGBUS
Troubleshooting Rerun: https://www.rerun.io/docs/getting-started/troubleshooting 
Report bugs: https://github.com/rerun-io/rerun/issues