FYI I am having a related problem where I cannot run MaskRCNN in the deepstream NGC container because it does not have TensorRT OSS, and getting that to compile in the container is running me up against a few road blocks. I need CUDA but installing the cuda package from apt gave me trouble. Also the version of cmake available on that apt system is too old, though installing cmake from source is easy enough. I am still working through this, but the need to compile TensorRT OSS is a pain to say the least. I will probably get this working, I just wanted to share this info!