Fix #3186 - create leaf/non-leaf/requires_grad/retain_grad tutorial #4977

Job	Run time
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	31m 52s
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	14m 47s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	24m 55s
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	37m 25s
pytorch_tutorial_build_worker (7, 15, linux.g5.4xlarge.nvidia.gpu)	29m 28s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	22m 44s
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	19m 37s
pytorch_tutorial_build_worker (8, 15, linux.g5.4xlarge.nvidia.gpu)	28m 59s
pytorch_tutorial_build_worker (11, 15, linux.g5.4xlarge.nvidia.gpu)	16m 55s
pytorch_tutorial_build_worker (9, 15, linux.g5.4xlarge.nvidia.gpu)	22m 54s
pytorch_tutorial_build_worker (10, 15, linux.g5.4xlarge.nvidia.gpu)	15m 22s
pytorch_tutorial_build_worker (12, 15, linux.g5.4xlarge.nvidia.gpu)	16m 7s
pytorch_tutorial_build_worker (15, 15, linux.g5.4xlarge.nvidia.gpu)	28m 41s
pytorch_tutorial_build_worker (13, 15, linux.g5.4xlarge.nvidia.gpu)	14m 49s
pytorch_tutorial_build_worker (14, 15, linux.g5.4xlarge.nvidia.gpu)	18m 27s
pytorch_tutorial_build_manager	20m 47s
	6h 3m 49s

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