Compile error while building split_byref_op

[abhinavarora]

<scratch space>:135:1: note: expanded from here
boost_static_assert_typedef_1697
^
In file included from /Users/aroraabhinav/Documents/workspace/paddlepaddle/Paddle/paddle/fluid/operators/split_byref_op.cc:15:
/Users/aroraabhinav/Documents/workspace/paddlepaddle/Paddle/paddle/fluid/operators/split_byref_op.h:36:14: error: moving a temporary object prevents copy
      elision [-Werror,-Wpessimizing-move]
      *out = std::move(in->Slice(row_offset, row_offset + out->dims()[0]));
             ^
/Users/aroraabhinav/Documents/workspace/paddlepaddle/Paddle/paddle/fluid/operators/split_byref_op.h:36:14: note: remove std::move call here
      *out = std::move(in->Slice(row_offset, row_offset + out->dims()[0]));
             ^~~~~~~~~~                                                  ~

[typhoonzero]

Are you compiling on MacOS?