Another try with Plone 5.0.8 but still failed.
I advanced regardless the failed installation:
cd ~/Plone/z*
sed -i 's/http:/https:/g' buildout.cfg
sed -i '/\[buildout\]/a index = https:\/\/pypi.python.org\/simple' buildout.cfg
/bin/buildout fails as expected.
Then I found this thread: Problem with buildout Plone 5.08
and decided to give it a go and downgrade setuptools:
bin/pip install setuptools==38.7.0
Collecting setuptools==38.7.0
Using cached setuptools-38.7.0-py2.py3-none-any.whl
Installing collected packages: setuptools
Found existing installation: setuptools 39.0.1
Uninstalling setuptools-39.0.1:
Successfully uninstalled setuptools-39.0.1
Successfully installed setuptools-38.7.0
bin/buildout now finishes correctly:
Uninstalling zeoserver.
Installing zeoserver.
Created directory /home/solydxk/Plone/zeocluster/parts/zeoserver
Created directory /home/solydxk/Plone/zeocluster/parts/zeoserver/etc
Created directory /home/solydxk/Plone/zeocluster/parts/zeoserver/var
Created directory /home/solydxk/Plone/zeocluster/parts/zeoserver/log
Created directory /home/solydxk/Plone/zeocluster/parts/zeoserver/bin
Wrote file /home/solydxk/Plone/zeocluster/parts/zeoserver/etc/zeo.conf
Wrote file /home/solydxk/Plone/zeocluster/parts/zeoserver/bin/zeoctl
Changed mode for /home/solydxk/Plone/zeocluster/parts/zeoserver/bin/zeoctl to 755
Wrote file /home/solydxk/Plone/zeocluster/parts/zeoserver/bin/runzeo
Changed mode for /home/solydxk/Plone/zeocluster/parts/zeoserver/bin/runzeo to 755
Installing client1.
/home/solydxk/Plone/zeocluster/local/lib/python2.7/site-packages/pkg_resources/__init__.py:208: RuntimeWarning: You have iterated over the result of pkg_resources.parse_version. This is a legacy behavior which is inconsistent with the new version class introduced in setuptools 8.0. In most cases, conversion to a tuple is unnecessary. For comparison of versions, sort the Version instances directly. If you have another use case requiring the tuple, please file a bug with the setuptools project describing that need.
stacklevel=1,
Getting distribution for 'Pillow==3.4.2'.
Single threaded build, not installing mp_compile:1 processes
warning: no files found matching '*.sh'
no previously-included directories found matching 'docs/_static'
warning: no previously-included files found matching '.coveragerc'
warning: no previously-included files found matching '.editorconfig'
warning: no previously-included files found matching '.landscape.yaml'
warning: no previously-included files found matching 'appveyor.yml'
warning: no previously-included files found matching 'build_children.sh'
warning: no previously-included files found matching 'tox.ini'
warning: no previously-included files matching '.git*' found anywhere in distribution
warning: no previously-included files matching '*.pyc' found anywhere in distribution
warning: no previously-included files matching '*.so' found anywhere in distribution
--------------------------------------------------------------------
PIL SETUP SUMMARY
--------------------------------------------------------------------
version Pillow 3.4.2
platform linux2 2.7.13 (default, Nov 24 2017, 17:33:09)
[GCC 6.3.0 20170516]
--------------------------------------------------------------------
--- JPEG support available
*** OPENJPEG (JPEG2000) support not available
--- ZLIB (PNG/ZIP) support available
*** LIBIMAGEQUANT support not available
*** LIBTIFF support not available
*** FREETYPE2 support not available
*** LITTLECMS2 support not available
*** WEBP support not available
*** WEBPMUX support not available
--------------------------------------------------------------------
To add a missing option, make sure you have the required
library and headers.
See https://pillow.readthedocs.io/en/latest/installation.html#building-from-source
To check the build, run the selftest.py script.
Got Pillow 3.4.2.
Getting distribution for 'lxml==3.5.0'.
Building lxml version 3.5.0.
Building without Cython.
Using build configuration of libxslt 1.1.29
Got lxml 3.5.0.
Generated script '/home/solydxk/Plone/zeocluster/bin/client1'.
Generated interpreter '/home/solydxk/Plone/zeocluster/parts/client1/bin/interpreter'.
Generated script '/home/solydxk/Plone/zeocluster/bin/gifmaker.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/enhancer.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/thresholder.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/pilfile.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/painter.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/viewer.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/explode.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/pildriver.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/pilconvert.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/pilfont.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/player.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/createfontdatachunk.py'.
Generated script '/home/solydxk/Plone/zeocluster/bin/pilprint.py'.
Installing backup.
Generated script '/home/solydxk/Plone/zeocluster/bin/backup'.
Generated script '/home/solydxk/Plone/zeocluster/bin/fullbackup'.
Generated script '/home/solydxk/Plone/zeocluster/bin/snapshotbackup'.
Generated script '/home/solydxk/Plone/zeocluster/bin/restore'.
Generated script '/home/solydxk/Plone/zeocluster/bin/snapshotrestore'.
Installing zopepy.
Generated interpreter '/home/solydxk/Plone/zeocluster/bin/zopepy'.
Installing unifiedinstaller.
Generated script '/home/solydxk/Plone/zeocluster/bin/plonectl'.
I now have a functioning Plone server although I don't think this is the right way to do it.
Is there anything I can do now?