Can not run preprocessing in docker for LJ-Speech

[pomoq-dev]

Describe the bug I'm trying to run preprocess

To Reproduce Steps to reproduce the behavior:

1. Make steps from README.md
2. Run all in docker (cpu)
3. Model https://keithito.com/LJ-Speech-Dataset/

Expected behavior Successful preprocessing ...

Log files

root@93bedabb4b0a:~/mimic2# python3 preprocess.py --dataset ljspeech
Traceback (most recent call last):
  File "preprocess.py", line 5, in <module>
    from datasets import amy, blizzard, ljspeech, kusal, mailabs
  File "/root/mimic2/datasets/amy.py", line 4, in <module>
    import librosa
  File "/usr/local/lib/python3.5/dist-packages/librosa/__init__.py", line 12, in <module>
    from . import core
  File "/usr/local/lib/python3.5/dist-packages/librosa/core/__init__.py", line 109, in <module>
    from .audio import *  # pylint: disable=wildcard-import
  File "/usr/local/lib/python3.5/dist-packages/librosa/core/audio.py", line 12, in <module>
    import resampy
  File "/usr/local/lib/python3.5/dist-packages/resampy/__init__.py", line 7, in <module>
    from .core import *
  File "/usr/local/lib/python3.5/dist-packages/resampy/core.py", line 9, in <module>
    from .interpn import resample_f_s, resample_f_p
  File "/usr/local/lib/python3.5/dist-packages/resampy/interpn.py", line 75, in <module>
    nopython=True,
TypeError: guvectorize() missing 1 required positional argument: 'signature'