Hi Shai,
I see there is a failure saying:
------------------
Running test build...
ERROR: Some other Meson process is already using this build directory. Exiting.
A full log can be found at /root/dpdk-ci/tools/dpdk/build/meson-logs/meson-log.txt
--------------------
This failure looks suspect to me. Do you mind taking a look? Perhaps you are using the same meson directory for separate CI runs which are happening in parallel and they are conflicting?