This bug was filed from the Socorro interface and is report bp-6f40b9d6-5d43-4e0c-846f-d685f0171029. ============================================================= Crashing Thread (27) Frame Module Signature Source 0 xul.dll <lambda_259bd4be3b4eb4ed0f5fc0f55cc577f7>::operator() layout/style/ServoBindings.cpp:1078 1 xul.dll DoMatch<mozilla::dom::Element const, <lambda_c11f0be9a9d19adeea6601dc6a02ddea> > layout/style/ServoBindings.cpp:982 2 xul.dll Gecko_AttrHasPrefix layout/style/ServoBindings.cpp:1214 3 xul.dll style::gecko::wrapper::{{impl}}::attr_matches servo/components/style/gecko/wrapper.rs:1849 4 xul.dll selectors::matching::matches_simple_selector<style::gecko::wrapper::GeckoElement, closure> servo/components/selectors/matching.rs:693 5 xul.dll selectors::matching::matches_complex_selector_internal<style::gecko::wrapper::GeckoElement, closure> servo/components/selectors/matching.rs:537 6 xul.dll selectors::matching::matches_complex_selector<style::gecko::wrapper::GeckoElement, closure> servo/components/selectors/matching.rs:419 7 xul.dll style::stylist::{{impl}}::match_revalidation_selectors::{{closure}}::{{closure}}<style::gecko::wrapper::GeckoElement, closure> servo/components/style/stylist.rs:1485 8 xul.dll style::traversal::compute_style<style::gecko::wrapper::GeckoElement> servo/components/style/traversal.rs:769 9 xul.dll rayon_core::job::{{impl}}::execute<closure> third_party/rust/rayon-core/src/job.rs:139 10 xul.dll rayon_core::registry::WorkerThread::wait_until<rayon_core::latch::CountLatch> third_party/rust/rayon-core/src/registry.rs:433 11 xul.dll rayon_core::registry::in_worker<closure, ()> third_party/rust/rayon-core/src/registry.rs:588 12 xul.dll rayon_core::job::{{impl}}::execute<rayon_core::latch::LockLatch, closure, ()> third_party/rust/rayon-core/src/job.rs:95 13 xul.dll rayon_core::registry::WorkerThread::wait_until<rayon_core::latch::CountLatch> third_party/rust/rayon-core/src/registry.rs:433 14 xul.dll std::sys_common::backtrace::__rust_begin_short_backtrace<closure, ()> src/libstd/sys_common/backtrace.rs:133 15 xul.dll alloc::boxed::{{impl}}::call_box<(), closure> src/liballoc/boxed.rs:681 16 xul.dll std::sys::imp::thread::{{impl}}::new::thread_start src/libstd/sys/windows/thread.rs:50 17 kernel32.dll BaseThreadInitThunk 18 ntdll.dll RtlUserThreadStart Application Basics: Name: Firefox Version: 58.0a1 Build ID: 20171029102300 Update Channel: nightly User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0 OS: Windows_NT 10.0

status-firefox57=wontfix unless someone thinks this bug should block 57

P4 because there are only two reports so far.

WORKSFORME because there has only been one crash in Beta 57 and one in Nightly 58.