Function acquire_next_image 

pub unsafe fn acquire_next_image(
    device: VkHandleRef<'_, VkDevice>,
    swapchain: VkHandleRefMut<'_, VkSwapchainKHR>,
    timeout: u64,
    semaphore: Option<VkHandleRefMut<'_, VkSemaphore>>,
    fence: Option<VkHandleRefMut<'_, VkFence>>,
) -> Result<u32>

Safety

swapchain, semaphore and fence must be created from the same device.