Intermittent timeout in /css21_dev/html4/height-072.htm

[Manishearth]

#13307

[jdm]

  ▶ TIMEOUT [expected PASS] /css21_dev/html4/height-072.htm
  │ 
  │ Xlib:  extension "XFree86-VidModeExtension" missing on display ":0".
  │ failed to receive response to font request: IoError(Error { repr: Os { code: 104, message: "Connection reset by peer" } }) (thread LayoutWorker worker 1/12, at ../src/libcore/result.rs:799)
  │ stack backtrace:
  │    0:     0x7f057ca1da1d - backtrace::backtrace::trace::h0e60ef08c7c34e9f
  │    1:     0x7f057ca1e0a2 - backtrace::capture::Backtrace::new::h8bf319c36d8f5d1b
  │    2:     0x7f057b1fc3ad - servo::main::_{{closure}}::h911afab4cc009f33
  │    3:     0x7f057cc710d5 - std::panicking::rust_panic_with_hook::hb1322e5f2588b4db
  │    4:     0x7f057cc70fa2 - std::panicking::begin_panic::hfbeda5aad583dc32
  │    5:     0x7f057cc70ee0 - std::panicking::begin_panic_fmt::h4fe9fb9d5109c4bf
  │    6:     0x7f057cc70e61 - rust_begin_unwind
  │    7:     0x7f057ccade0f - core::panicking::panic_fmt::h4395919ece15c671
  │    8:     0x7f057c442f24 - core::result::unwrap_failed::h3191a47cbfbe2a26
  │    9:     0x7f057c467e1d - gfx::font_cache_thread::FontCacheThread::find_font_template::hc43bc4dfd5ffdc42
  │   10:     0x7f057c4695a6 - gfx::font_context::FontContext::layout_font_group_for_style::h01f9ffa61c2005ba
  │   11:     0x7f057c3ea1de - layout::text::TextRunScanner::scan_for_runs::h6d421cd1fda9eb14
  │   12:     0x7f057b539655 - _<layout..construct..FlowConstructor<'a, ConcreteThreadSafeLayoutNode>>::build_flow_for_block_starting_with_fragments::hd906ade571a4fd88
  │   13:     0x7f057b537b98 - _<layout..construct..FlowConstructor<'a, ConcreteThreadSafeLayoutNode>>::build_flow_for_block_like::h6b4d6558251c3ea9
  │   14:     0x7f057b536f85 - _<layout..construct..FlowConstructor<'a, ConcreteThreadSafeLayoutNode>>::build_flow_for_block::h16765789fa64448a
  │   15:     0x7f057b4d0f4d - _<layout..construct..FlowConstructor<'a, ConcreteThreadSafeLayoutNode> as layout..traversal..PostorderNodeMutTraversal<ConcreteThreadSafeLayoutNode>>::process::h7eeb4729e86dc15d
  │   16:     0x7f057b4c0fc8 - _<layout..traversal..RecalcStyleAndConstructFlows<'lc> as style..traversal..DomTraversalContext<N>>::process_postorder::h77e804e07a6927fb
  │   17:     0x7f057b521707 - style::parallel::top_down_dom::ha6ba301686f4e280
  │   18:     0x7f057b56d260 - _<style..workqueue..WorkQueue<QueueData, WorkData>>::new::_{{closure}}::hf7f570a4067126e2
  │   19:     0x7f057b4e7d90 - std::panicking::try::do_call::h61ee89652c7f18dc
  │   20:     0x7f057cc79346 - __rust_maybe_catch_panic
  │   21:     0x7f057b50f58c - _<F as alloc..boxed..FnBox<A>>::call_box::h0444ca8d98004df8
  │   22:     0x7f057cc6f710 - std::sys::thread::Thread::new::thread_start::h022e3887023c6290
  │   23:     0x7f057910f183 - start_thread
  │   24:     0x7f0578c2637c - clone
  │   25:                0x0 - <unknown>
  └ ERROR:servo: failed to receive response to font request: IoError(Error { repr: Os { code: 104, message: "Connection reset by peer" } })

[jdm]

Similar to #11563, #12540, #12987.

[jdm]

This is #13492.