ipc-channel panic on Linux with zero-length data

[asajeffrey]

Running the Dromaeo DOM Core tests:

$ ./target/release/servo tests/dromaeo/dromaeo/web/index.html 
[dromaeo] getAttribute
...
[dromaeo] cloneNode
thread 'ImageCacheThread' panicked at 'assertion failed: libc::close(self.fd) == 0', /home/ajeffrey /tmp/servo/.cargo/git/checkouts/ipc-channel-d95a23d1f1577bfc/master/platform/linux/mod.rs:101
thread '<unnamed>' panicked at 'index out of bounds: the len is 0 but the index is 0', src/libcollections/vec.rs:1044
thread 'ImageCacheThread' panicked at 'assertion failed: libc::close(self.fd) == 0', /home/ajeffrey/tmp/servo/.cargo/git/checkouts/ipc-channel-d95a23d1f1577bfc/master/platform/linux/mod.rs:101
stack backtrace:
thread '<unnamed>' panicked at 'assertion failed: libc::close(pollfd.fd) >= 0', /home/ajeffrey/tmp/servo/.cargo/git/checkouts/ipc-channel-d95a23d1f1577bfc/master/platform/linux/mod.rs:300
thread 'ScriptTask PipelineId { namespace_id: PipelineNamespaceId(0), index: PipelineIndex(1) }' panicked at 'called `Result::unwrap()` on an `Err` value: "SendError(..)"', src/libcore/result.rs:736
   1:     0x7ff7133be070 - sys::fatal runtime error: backtrace::tracing::imp::Could not unwind stack, error = write::h23bfa7a49ed99d87Klt5
   2:     0x7ff7133c05c5 - panicking::log_panic::_<closureIllegal instruction (core dumped)

Looks similar to #7802 but for Linux rather than MacOS.

[jdm]

cc @pcwalton

[nox]

Is this still true?