errors when trying to build docker file from pip and requirements.txt

[mycomedico]

`=> ERROR [6/6] RUN pip install -r requirements.txt 1.2s

[6/6] RUN pip install -r requirements.txt:
0.445 Collecting nose (from -r requirements.txt (line 1))
0.642 Downloading https://files.pythonhosted.org/packages/15/d8/dd071918c040f50fa1cf80da16423af51ff8ce4a0f2399b7bf8de45ac3d9/nose-1.3.7-py3-none-any.whl (154kB)
0.710 Collecting sklearn (from -r requirements.txt (line 2))
0.811 Downloading https://files.pythonhosted.org/packages/46/1c/395a83ee7b2d2ad7a05b453872053d41449564477c81dc356f720b16eac4/sklearn-0.0.post12.tar.gz
0.950 ERROR: Command errored out with exit status 1:
0.950 command: /usr/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-c7ifon1i/sklearn/setup.py'"'"'; file='"'"'/tmp/pip-install-c7ifon1i/sklearn/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base pip-egg-info
0.950 cwd: /tmp/pip-install-c7ifon1i/sklearn/
0.950 Complete output (15 lines):
0.950 The 'sklearn' PyPI package is deprecated, use 'scikit-learn'
0.950 rather than 'sklearn' for pip commands.
0.950
0.950 Here is how to fix this error in the main use cases:
0.950 - use 'pip install scikit-learn' rather than 'pip install sklearn'
0.950 - replace 'sklearn' by 'scikit-learn' in your pip requirements files
0.950 (requirements.txt, setup.py, setup.cfg, Pipfile, etc ...)
0.950 - if the 'sklearn' package is used by one of your dependencies,
0.950 it would be great if you take some time to track which package uses
0.950 'sklearn' instead of 'scikit-learn' and report it to their issue tracker
0.950 - as a last resort, set the environment variable
0.950 SKLEARN_ALLOW_DEPRECATED_SKLEARN_PACKAGE_INSTALL=True to avoid this error
0.950
0.950 More information is available at
0.950 https://github.com/scikit-learn/sklearn-pypi-package
0.950 ----------------------------------------
0.958 ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
1.137 WARNING: You are using pip version 19.2.3, however version 21.3.1 is available.
1.137 You should consider upgrading via the 'pip install --upgrade pip' command.

---

Dockerfile.cpu:20

18 | WORKDIR /src
19 |
20 | >>> RUN pip install -r requirements.txt
21 |
22 | ENV PYTHONPATH='/src/:$PYTHONPATH'

ERROR: failed to solve: process "/bin/sh -c pip install -r requirements.txt" did not complete successfully: exit code: 1
`