Intermittent crash in /html/canvas/offscreen/the-offscreen-canvas/size.large.html, /html/canvas/offscreen/the-offscreen-canvas/size.large.worker.html

[jdm]

  ▶ CRASH [expected OK] /offscreen-canvas/the-offscreen-canvas/size.large.html
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  │ Stack trace for thread "CanvasThread"
  │ stack backtrace:
  │    0: backtrace::backtrace::trace
  │    1: backtrace::capture::Backtrace::new
  │    2: servo::install_crash_handler::handler
  │    3: _sigtramp
  │    4: AzCreateDrawTarget
  │    5: azure::azure_hl::DrawTarget::new
  │    6: <canvas::azure_backend::AzureBackend as canvas::canvas_data::Backend>::create_drawtarget
  │    7: canvas::canvas_data::CanvasData::recreate
  │    8: _ZN3std10sys_common9backtrace28__rust_begin_short_backtrace17hb22351f2903007feE.llvm.14423657731009663445
  │    9: __rust_maybe_catch_panic
  │   10: core::ops::function::FnOnce::call_once{{vtable.shim}}
  │   11: <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once
  │   12: std::sys::unix::thread::Thread::new::thread_start
  │   13: _pthread_body
  │   14: _pthread_start
  └ 

[jdm]

  ▶ CRASH [expected OK] /offscreen-canvas/the-offscreen-canvas/size.large.worker.html
  │ 
  │ 
  │ 
  │ 
  │ Stack trace for thread "CanvasThread"
  └ stack backtrace: