error debian 8.11 - sct 4.0.0

--
Spinal Cord Toolbox (4.0.0)

SCT info:
- version: 4.0.0
- path: /home/alex/sct_4.0.0
OS: linux (Linux-3.16.0-6-amd64-x86_64-with-debian-8.11)
CPU cores: Available: 4, Used by SCT: 4
RAM: MemTotal:        4058416 kB
total       used       free     shared    buffers     cached
Mem:          3963       2547       1415         30         57       1628
-/+ buffers/cache:        861       3102
Swap:          879          9        870
Check Python executable.............................[OK]
  Using bundled python 3.6.10 |Anaconda, Inc.| (default, Jan  7 2020, 21:14:29) 
[GCC 7.3.0] at /home/alex/sct_4.0.0/python/envs/venv_sct/bin/python
Check if data are installed.........................[OK]
Check if numpy is installed.........................[OK] (1.18.1)
Check if cryptography is installed..................[OK] (2.8)
Check if dipy is installed..........................[OK] (1.1.1)
Check if futures is installed.......................[OK]
Check if h5py is installed..........................[OK] (2.10.0)
Check if Keras is installed.........................2020-02-10 16:11:19.319744: W tensorflow/stream_executor/platform/default/dso_loader.cc:55] Could not load dynamic library 'libnvinfer.so.6'; dlerror: libnvinfer.so.6: cannot open shared object file: No such file or directory
2020-02-10 16:11:19.319920: W tensorflow/stream_executor/platform/default/dso_loader.cc:55] Could not load dynamic library 'libnvinfer_plugin.so.6'; dlerror: libnvinfer_plugin.so.6: cannot open shared object file: No such file or directory
2020-02-10 16:11:19.319944: W tensorflow/compiler/tf2tensorrt/utils/py_utils.cc:30] Cannot dlopen some TensorRT libraries. If you would like to use Nvidia GPU with TensorRT, please make sure the missing libraries mentioned above are installed properly.
[OK] (2.3.1)
Check if matplotlib is installed....................[OK] (3.1.3)
Check if nibabel is installed.......................[OK] (3.0.1)
Check if pandas is installed........................[OK] (1.0.1)
Check if psutil is installed........................[OK] (5.6.7)
Check if pyqt5 is installed.........................[OK]
Check if raven is installed.........................[OK]
Check if requests is installed......................[OK] (2.22.0)
Check if scipy is installed.........................[OK] (1.4.1)
Check if scikit-image is installed..................[FAIL]
Check if scikit-learn is installed..................[FAIL]
Check if tensorflow is installed....................[OK] (2.1.0)
Check if spinalcordtoolbox is installed.............[OK]
Check ANTs compatibility with OS ...................[OK]
Check PropSeg compatibility with OS ................[OK]
Check if figure can be opened.......................[OK]


Installation validation Failed!

Please copy the historic of this Terminal (starting with the command install_sct) and paste it in the SCT Help forum (create a new discussion):

http://forum.spinalcordmri.org/c/sct


Installation failed