platform::platform::x11::util::input::PointerState` uninitialized, which is invalid

[amarao]

After upgrading from Rust 1.47.0 to 1.48.0 existing code (based on piston) start to crash in event.next() if mouse is moved over the window (X, Linux).

Versions:
winit 0.19.5
piston 0.52.1
piston_window 0.116.0

The code to reproduce the problem: https://github.com/amarao/equart/tree/c20a1a6188da076ef3791f94ffa662a2da1ce00c

Under Rust 1.47.0 it's working without panic, with Rust 1.48.0 it's panicking:

thread 'main' panicked at 'attempted to leave type `platform::platform::x11::util::input::PointerState` uninitialized, which is invalid', /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/core/src/mem/mod.rs:658:9
stack backtrace:
   0: rust_begin_unwind
             at /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/std/src/panicking.rs:483
   1: core::panicking::panic_fmt
             at /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/core/src/panicking.rs:85
   2: core::panicking::panic
             at /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/core/src/panicking.rs:50
   3: winit::platform::platform::x11::util::input::<impl winit::platform::platform::x11::xdisplay::XConnection>::query_pointer
   4: winit::platform::platform::x11::EventsLoop::process_event
   5: winit::platform::platform::EventsLoop::poll_events
   6: glutin_window::GlutinWindow::poll_event
   7: <glutin_window::GlutinWindow as window::Window>::poll_event
   8: event_loop::Events::next
   9: equart::main

[maroider]

Older versions of Winit aren't really supported.

Getting PistonDevelopers/glutin_window#179 merged is probably your best shot at getting rid of this error.

[msiglreith]

Closing as discussed in #1773 and #1778
Resolution was that 0.19 won't be patched and latest winit version should be used as maroider already mentioned