[BUG][AUTOTVM] RUN TIME error in the master branch

When I pull code in the master branch my code, the below error occurs in tutorials/autotvm/tune_relay_cuda.py. I think this problem results from commit (b1116954f532d869a7ce8d9eb24745f368b66e59).

DEBUG:autotvm:No: 248   GFLOPS: 0.00/0.00       result: MeasureResult(costs=('request_remote() argument after ** must be a
 mapping, not tuple',), 
=7, all_cost=4, timestamp=1614690593.3846395)   [('tile_f', [-1, 1, 4, 1]), ('tile_y', [-1
, 1, 7, 1]), ('tile_x', [-1, 7, 1, 1]), ('tile_rc', [-1, 1]), ('tile_ry', [-1, 1]), ('tile_rx', [-1, 1]), ('auto_unroll_ma
x_step', 512), ('unroll_explicit', 0)],None,33019    

anybody help me?