Function create_graphics_pipelines 

pub unsafe fn create_graphics_pipelines(
    device: VkHandleRef<'_, VkDevice>,
    pipeline_cache: Option<VkHandleRef<'_, VkPipelineCache>>,
    create_infos: &[GraphicsPipelineCreateInfo<'_>],
    allocation_callbacks: Option<&VkAllocationCallbacks>,
    results: &mut [MaybeUninit<VkPipeline>],
) -> Result<()>

Safety

pipeline_cache must be created from device.