We’ve been hitting this exact issue (phpenv runs as rbenv) with the Travis Focal image: log at https://api.travis-ci.com/v3/job/572451031/log.txt
phpenv --version
rbenv 1.2.0-8-ga76c4aa
Note that this occurs for both:
phpenv global 8.1.6
phpenv global 8.0
Please advise. Thanks.
-jeff
MapServer project steering committee member