AttributeError: 'Program' object has no attribute '_program'

I'm trying to reproduce QRNN in the project and launch the command from readme example:
(.venv3gpu) alx@x3:~/Cloud/spell_corr/awd-lstm-lm$ python -u main.py --epochs 14 --nlayers 4 --emsize 400 --nhid 2500 --alpha 0 --beta 0 --dropoute 0 --dropouth 0.1 --dropouti 0.1 --dropout 0.1 --wdrop 0 --wdecay 0 --bptt 140 --batch_size 60 --optimizer adam --lr 1e-3 --data data/wikitext-103 --save WT103.12hr.QRNN.pt --when 12 --model QRNN
Loading cached dataset...
Applying weight drop of 0.0 to weight
Applying weight drop of 0.0 to weight
Applying weight drop of 0.0 to weight
Applying weight drop of 0.0 to weight
[QRNNLayer(
  (linear): WeightDrop(
    (module): Linear(in_features=800, out_features=7500, bias=True)
  )
), QRNNLayer(
  (linear): WeightDrop(
    (module): Linear(in_features=2500, out_features=7500, bias=True)
  )
), QRNNLayer(
  (linear): WeightDrop(
    (module): Linear(in_features=2500, out_features=7500, bias=True)
  )
), QRNNLayer(
  (linear): WeightDrop(
    (module): Linear(in_features=2500, out_features=1200, bias=True)
  )
)]
Using [2800, 20000, 76000]
Args: Namespace(alpha=0.0, batch_size=60, beta=0.0, bptt=140, clip=0.25, cuda=True, data='data/wikitext-103', dropout=0.1, dropoute=0.0, dropouth=0.1, dropouti=0.1, emsize=400, epochs=14, log_interval=200, lr=0.001, model='QRNN', nhid=2500, nlayers=4, nonmono=5, optimizer='adam', resume='', save='WT103.12hr.QRNN.pt', seed=1111, tied=True, wdecay=0.0, wdrop=0.0, when=[12])
Model total parameters: 153886638
/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/torch/nn/functional.py:1340: UserWarning: nn.functional.tanh is deprecated. Use torch.tanh instead.
  warnings.warn("nn.functional.tanh is deprecated. Use torch.tanh instead.")
/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/torch/nn/functional.py:1351: UserWarning: nn.functional.sigmoid is deprecated. Use torch.sigmoid instead.
  warnings.warn("nn.functional.sigmoid is deprecated. Use torch.sigmoid instead.")
/pytorch/torch/csrc/autograd/python_function.cpp:622: UserWarning: Legacy autograd function with non-static forward method is deprecated and will be removed in 1.3. Please use new-style autograd function with static forward method. (Example: https://pytorch.org/docs/stable/autograd.html#torch.autograd.Function)
Traceback (most recent call last):
  File "main.py", line 240, in <module>
    train()
  File "main.py", line 196, in train
    output, hidden, rnn_hs, dropped_rnn_hs = model(data, hidden, return_h=True)
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/torch/nn/modules/module.py", line 541, in __call__
    result = self.forward(*input, **kwargs)
  File "/home/alx/Cloud/spell_corr/awd-lstm-lm/model.py", line 81, in forward
    raw_output, new_h = rnn(raw_output, hidden[l])
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/torch/nn/modules/module.py", line 541, in __call__
    result = self.forward(*input, **kwargs)
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/torchqrnn/qrnn.py", line 99, in forward
    C = ForgetMult()(F, Z, hidden, use_cuda=self.use_cuda)
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/torch/nn/modules/module.py", line 541, in __call__
    result = self.forward(*input, **kwargs)
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/torchqrnn/forget_mult.py", line 179, in forward
    return GPUForgetMult()(f, x, hidden_init) if use_cuda else CPUForgetMult()(f, x, hidden_init)
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/torchqrnn/forget_mult.py", line 120, in forward
    self.compile()
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/torchqrnn/forget_mult.py", line 102, in compile
    program = Program(kernel.encode(), 'recurrent_forget_mult.cu'.encode())
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/pynvrtc/compiler.py", line 52, in __init__
    include_names)
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/pynvrtc/interface.py", line 200, in nvrtcCreateProgram
    c_char_p(encode_str(src)), c_char_p(encode_str(name)),
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/pynvrtc/interface.py", line 54, in encode_str
    return s.encode("utf-8")
AttributeError: 'bytes' object has no attribute 'encode'
Exception ignored in: <bound method Program.__del__ of <pynvrtc.compiler.Program object at 0x7fa9f5a4e518>>
Traceback (most recent call last):
  File "/home/alx/Cloud/.venv3gpu/lib/python3.6/site-packages/pynvrtc/compiler.py", line 56, in __del__
    self._interface.nvrtcDestroyProgram(self._program)
AttributeError: 'Program' object has no attribute '_program'
Does anybody know how to fix this issue?
salesforce / awd-lstm-lm

AttributeError: 'Program' object has no attribute '_program' #110
