The fast build failed (compilation error) and therefore the CI should have stopped there. However, the prepare build was skipped and then all jobs from the build stage started, and failed. This is not the expected behavior of CI.
Maybe this is a regression from !666 (merged)
The copyright owner is CNES and has signed the ORFEO ToolBox Contributor License Agreement.
Check before merging:
git diff develop... -U0 --no-color | clang-format-diff.py -p1 -i on latest changes and commit