called `Result::unwrap()` on an `Err` value: "SendError(..)"

[kronolynx]

called Result::unwrap() on an Err value: "SendError(..)"

URL:

Servo Version:

Servo 0.0.1-b18ec28

Backtrace:

WARNING: <Constellation>: creating replacement pipeline for about:failure
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(3), index: PipelineIndex(3) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(3), index: PipelineIndex(3) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(3), index: PipelineIndex(3) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(3) }>: Panic hook called.
ERROR: called `Result::unwrap()` on an `Err` value: "SendError(..)"

stack backtrace:
   0:     0x56191460b15d - backtrace::backtrace::trace::h16372ee7bf1517e5
   1:     0x56191460b7e2 - backtrace::capture::Backtrace::new::hcc43c50c4b11c693
   2:     0x561914537714 - constellation::constellation::log_entry::he12c9f745ab9ba89
   3:     0x5619145366a0 - _<constellation..constellation..FromCompositorLogger as log..Log>::log::h5e6d3fe41a5b4c10
   4:     0x561914d805cf - log::__log::h4d9758b2ad9415f2
   5:     0x56191300c417 - servo::main::_{{closure}}::h468cabf2933cf9ff
   6:     0x561914dba9f4 - std::panicking::rust_panic_with_hook
                        at /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/obj/../src/libstd/panicking.rs:452
   7:     0x561914dba8b4 - std::panicking::begin_panic<collections::string::String>
                        at /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/obj/../src/libstd/panicking.rs:413
   8:     0x561914dba7d9 - std::panicking::begin_panic_fmt
                        at /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/obj/../src/libstd/panicking.rs:397
   9:     0x561914dba767 - std::panicking::rust_begin_panic
                        at /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/obj/../src/libstd/panicking.rs:373
  10:     0x561914df71cd - core::panicking::panic_fmt
                        at /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/obj/../src/libcore/panicking.rs:69
  11:     0x561913536fc5 - core::result::unwrap_failed::h68d61de34b591c34
  12:     0x56191380e134 - script::dom::window::Window::force_reflow::h2d96f08ca1a72913
  13:     0x56191380e640 - script::dom::window::Window::reflow::h3633b5ce23c3e451
  14:     0x56191367ef65 - script::dom::document::Document::handle_mouse_move_event::he19e0f0b23271896
  15:     0x56191387bfb3 - script::script_thread::ScriptThread::handle_event::h37cee4ffa3fd0ab1
  16:     0x561913859803 - script::script_thread::ScriptThread::handle_msg_from_constellation::h433d0e68d36ba36f
  17:     0x561913b68ced - script::script_thread::ScriptThread::handle_msgs::_{{closure}}::hd0bd397d54ad8158
  18:     0x561913854e44 - script::script_thread::ScriptThread::handle_msgs::h831a39b83948db01
  19:     0x561913382e37 - std::panicking::try::do_call::h126bdcce98720636
  20:     0x561914dc305a - panic_unwind::__rust_maybe_catch_panic
                        at /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/obj/../src/libpanic_unwind/lib.rs:97
  21:     0x56191356e1d4 - _<F as alloc..boxed..FnBox<A>>::call_box::hce6b3fd124b7c005
  22:     0x561914db8f74 - alloc::boxed::{{impl}}::call_once<(),()>
                        at /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/obj/../src/liballoc/boxed.rs:605
                         - std::sys_common::thread::start_thread
                        at /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/obj/../src/libstd/sys/common/thread.rs:21
                         - std::sys::thread::{{impl}}::new::thread_start
                        at /buildslave/rust-buildbot/slave/nightly-dist-rustc-linux/build/obj/../src/libstd/sys/unix/thread.rs:84
  23:     0x7f62e4557709 - start_thread
  24:     0x7f62e407782c - clone
  25:                0x0 - <unknown>

This report was generated by the browser.html issue reporter.

Error thrown in the terminal:

ERROR:script::dom::bindings::error: Error at http://deutschland.fm/:6:4 document.write is not a function
ERROR:script::dom::bindings::error: Error at http://deutschland.fm/:8:2 document.write is not a function
Layout attached to empty script thread. (thread ScriptThread PipelineId { namespace_id: PipelineNamespaceId(3), index: PipelineIndex(6) }, at /home/servo/buildbot/slave/linux-nightly/build/components/script/script_thread.rs:1209)
ERROR:servo: Layout attached to empty script thread.
called `Result::unwrap()` on an `Err` value: "SendError(..)" (thread ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(3) }, at ../src/libcore/result.rs:837)
ERROR:servo: called `Result::unwrap()` on an `Err` value: "SendError(..)"
[1:1:1202/140023:ERROR:chrome_content_client.cc(335)] Failed to locate and load the component updated flash plugin.
[19476:19476:1202/140023:ERROR:chrome_content_client.cc(335)] Failed to locate and load the component updated flash plugin.
Created new window in existing browser session.
called `Result::unwrap()` on an `Err` value: RecvError (thread LayoutThread PipelineId { namespace_id: PipelineNamespaceId(0), index: PipelineIndex(3) }, at ../src/libcore/result.rs:837)
ERROR:servo: called `Result::unwrap()` on an `Err` value: RecvError

[jdm]

I filed #14573 while trying to reproduce this. The relevant code in Servo has changed enough that I don't think this report is useful any longer, but thanks for the testcase of deutschland.fm!