Drop implementation on Swapchain causes segmentation fault

When recreating the swapchain due to window resizing and destroying the swapchain during program termination, Drop on Swapchain causes a segmentation fault (found through running debugger). Drop implementation: ```rs impl Drop for Swapchain { #[inline] fn drop(&mut self) { let fns = self.device.fns(); unsafe { (fns.khr_swapchain.destroy_swapchain_khr)( self.device.handle(), self.handle, ptr::null(), ) }; } } ``` I am on vulkano 0.35.2.