attempted to zero-initialize type CUDA_MEMCPY3D_st, which is invalid

[stijnh]

Calling CUDA_MEMCPY3D_st::default() results in the following error on rustc 1.53.0 for cuda-driver-sys 0.3.0:

thread 'node047' panicked at 'attempted to zero-initialize type `CUDA_MEMCPY3D_st`, which is invalid', /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/core/src/mem/mod.rs:625:9
stack backtrace:
   0: rust_begin_unwind
             at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/panicking.rs:493:5
   1: core::panicking::panic_fmt
             at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/core/src/panicking.rs:92:14
   2: core::panicking::panic
             at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/core/src/panicking.rs:50:5
   3: core::mem::zeroed
             at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/core/src/mem/mod.rs:625:9
   4: <cuda_driver_sys::CUDA_MEMCPY3D_st as core::default::Default>::default
<...>