PIP install batches should fail fast otherwise it's unclear what is the nature of the failure:
[DEBUG] Executing command: '/Users/runner/work/pybuilder/pybuilder/.pybuilder/plugins/cpython-3.7.12.final.0/bin/python3' '-m' 'pip.__main__' 'install' '--upgrade' '--upgrade-strategy' 'only-if-needed' 'coverage~=6.0' 'coveralls~=2.1' 'flake8~=3.7' 'pdoc3>=0.8.3' 'pypandoc~=1.4' 'setuptools>=38.6.0' 'twine>=1.15.0' 'unittest-xml-reporting~=3.0.4' 'wheel>=0.34.0'
[DEBUG] Executing command: '/Users/runner/work/pybuilder/pybuilder/.pybuilder/plugins/cpython-3.7.12.final.0/bin/python3' '-m' 'pip.__main__' 'install' 'cram' 'sphinx'
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BUILD FAILED - Unable to install plugin packages into /Users/runner/work/pybuilder/pybuilder/.pybuilder/plugins/cpython-3.7.12.final.0. Please see '/Users/runner/work/pybuilder/pybuilder/.pybuilder/plugins/cpython-3.7.12.final.0/install.log' for full details:
Collecting sphinxcontrib-jsmath
Downloading sphinxcontrib_jsmath-1.0.1-py2.py3-none-any.whl (5.1 kB)
Collecting pytz>=2015.7
Downloading pytz-2021.3-py2.py3-none-any.whl (503 kB)
Collecting MarkupSafe>=2.0
Downloading MarkupSafe-2.0.1-cp37-cp37m-macosx_10_9_x86_64.whl (13 kB)
Collecting urllib3<1.27,>=1.21.1
Downloading urllib3-1.26.7-py2.py3-none-any.whl (138 kB)
Collecting certifi>=2017.4.17
Downloading certifi-2021.10.8-py2.py3-none-any.whl (149 kB)
Collecting idna<4,>=2.5
Downloading idna-3.2-py3-none-any.whl (59 kB)
Collecting charset-normalizer~=2.0.0
Downloading charset_normalizer-2.0.7-py3-none-any.whl (38 kB)
Collecting pyparsing>=2.0.2
Using cached pyparsing-2.4.7-py2.py3-none-any.whl (67 kB)
Installing collected packages: urllib3, pytz, pyparsing, MarkupSafe, idna, charset-normalizer, certifi, sphinxcontrib-serializinghtml, sphinxcontrib-qthelp, sphinxcontrib-jsmath, sphinxcontrib-htmlhelp, sphinxcontrib-devhelp, sphinxcontrib-applehelp, snowballstemmer, requests, Pygments, packaging, Jinja2, imagesize, docutils, babel, alabaster, sphinx, cram
Successfully installed Jinja2-3.0.2 MarkupSafe-2.0.1 Pygments-2.10.0 alabaster-0.7.12 babel-2.9.1 certifi-2021.10.8 charset-normalizer-2.0.7 cram-0.7 docutils-0.17.1 idna-3.2 imagesize-1.2.0 packaging-21.0 pyparsing-2.4.7 pytz-2021.3 requests-2.26.0 snowballstemmer-2.1.0 sphinx-4.2.0 sphinxcontrib-applehelp-1.0.2 sphinxcontrib-devhelp-1.0.2 sphinxcontrib-htmlhelp-2.0.0 sphinxcontrib-jsmath-1.0.1 sphinxcontrib-qthelp-1.0.3 sphinxcontrib-serializinghtml-1.1.5 urllib3-1.26.7
WARNING: You are using pip version 21.2.4; however, version 21.3 is available.
You should consider upgrading via the '/Users/runner/work/pybuilder/pybuilder/.pybuilder/plugins/cpython-3.7.12.final.0/bin/python3 -m pip install --upgrade pip' command. (pybuilder/install_utils.py:102)
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Build finished at 2021-10-12 02:23:20
Build took 19 seconds (19605 ms)
PIP install batches should fail fast otherwise it's unclear what is the nature of the failure: