Crash in flow construction

gistfile1.txt

(gdb) bt
#0  0x0000000000540cd3 in _$UP$layout..flow..Flow$LT$no.bounds$GT$::glue_drop::ha207b4efd13a0fdeaK ()
#1  0x0000000000573d44 in layout..construct..ConstructionResult::glue_drop::h67c02fa6f8c47ed3aY ()
    at /home/larsberg/servo-jack/src/components/main/layout/construct.rs:271
#2  0x000000000059573d in set_flow_construction_result (self=..., result=..., self=..., result=...)
    at /home/larsberg/servo-jack/src/components/main/layout/construct.rs:547
#3  process (self=0x7f14d81ffce0, node=...) at /home/larsberg/servo-jack/src/components/main/layout/construct.rs:494
#4  servo::layout::wrapper::LayoutNode::traverse_postorder_mut<layout::construct::FlowConstructor<>> (self=..., 
    traversal=0x7f14d81ffce0) at /home/larsberg/servo-jack/src/components/main/layout/wrapper.rs:227
#5  0x0000000000596449 in servo::layout::wrapper::LayoutNode::traverse_postorder_mut<layout::construct::FlowConstructor<>> (self=..., traversal=0x7f14d81ffce0) at /home/larsberg/servo-jack/src/components/main/layout/wrapper.rs:219
#6  0x0000000000596449 in servo::layout::wrapper::LayoutNode::traverse_postorder_mut<layout::construct::FlowConstructor<>> (self=..., traversal=0x7f14d81ffce0) at /home/larsberg/servo-jack/src/components/main/layout/wrapper.rs:219
#7  0x0000000000596449 in servo::layout::wrapper::LayoutNode::traverse_postorder_mut<layout::construct::FlowConstructor<>> (self=..., traversal=0x7f14d81ffce0) at /home/larsberg/servo-jack/src/components/main/layout/wrapper.rs:219
#8  0x0000000000594dca in servo::layout::layout_task::LayoutTask::construct_flow_tree (self=0x7f14d8200e68, 
    layout_context=0x7f14d82003a0, node=...)
    at /home/larsberg/servo-jack/src/components/main/layout/layout_task.rs:356
#9  0x0000000000598a6c in fn24193 () at /home/larsberg/servo-jack/src/components/main/layout/layout_task.rs:450
#10 0x000000000059888e in time::profile::ha1f69d6b81fc28f4al::v0.0 ()
    at /home/larsberg/servo-jack/src/components/main/layout/layout_task.rs:448
#11 0x0000000000591bdf in servo::layout::layout_task::LayoutTask::handle_reflow (self=0x7f14d8200e68, 
    data=0x7f14dc49f560) at /home/larsberg/servo-jack/src/components/main/layout/layout_task.rs:448
#12 0x00000000005913ad in fn24013 () at /home/larsberg/servo-jack/src/components/main/layout/layout_task.rs:280
#13 0x0000000000495924 in time::profile::h512c6173b708ec67a2::v0.0 ()
    at /home/larsberg/servo-jack/src/components/main/compositing/compositor.rs:598
#14 0x000000000058df4e in servo::layout::layout_task::LayoutTask::handle_request (self=0x7f14d8200e68)
    at /home/larsberg/servo-jack/src/components/main/layout/layout_task.rs:279
#15 0x000000000058c707 in servo::layout::layout_task::LayoutTask::start (self=0x7f14d8200e68)
    at /home/larsberg/servo-jack/src/components/main/layout/layout_task.rs:254
#16 0x000000000058a554 in fn23941 () at /home/larsberg/servo-jack/src/components/main/layout/layout_task.rs:218
#17 0x00007f14f03e61b8 in task::__extensions__::build_start_wrapper::anon::anon::expr_fn::a1 ()
   from /home/larsberg/servo-jack/build/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libgreen-83b1c0e5-0.9.so
#18 0x00007f14f072c3f8 in rt::task::__extensions__::run::anon::expr_fn::av ()
   from /home/larsberg/servo-jack/build/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libstd-3e5aeb83-0.9.so
#19 0x00007f14f073394c in rust_try ()
   from /home/larsberg/servo-jack/build/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libstd-3e5aeb83-0.9.so
#20 0x00007f14f072c19d in rt::task::Task::run::hf7663b6e52130dcb3aar::v0.9 ()
   from /home/larsberg/servo-jack/build/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libstd-3e5aeb83-0.9.so
#21 0x00007f14f03e5bdc in task::__extensions__::build_start_wrapper::anon::expr_fn::aK ()
   from /home/larsberg/servo-jack/build/x86_64-unknown-linux-gnu/src/compiler/rust/x86_64-unknown-linux-gnu/stage2/lib/rustc/x86_64-unknown-linux-gnu/lib/libgreen-83b1c0e5-0.9.so
#22 0x0000000000000000 in ?? ()
Warning: the current language does not match this frame.
(gdb) 

Matching lines:
https://github.com/metajack/servo/blob/rustup-20131219/src/components/main/layout/construct.rs#L270-L273