Build error when building agl-demo-platform-crosssdk (with ptest enabled)

Error is:

ERROR: babeltrace2-2.0.2-r0 do_fetch: Fetcher failure for URL: 'git://git.linuxfoundation.org/diamon/babeltrace.git;branch=stable-2.0'. Unable to fetch URL from any source.
ERROR: Logfile of failure stored in: /xdt/tmpbuild/master/core-development/m3ulcb-kf/build/m3ulcb-kf/tmp/work/aarch64-agl-linux/babeltrace2/2.0.2-r0/temp/log.do_fetch.30748
NOTE: recipe babeltrace2-2.0.2-r0: task do_fetch: Failed
ERROR: Task (/xdt/tmpbuild/master/core-development/m3ulcb-kf/meta/external/poky/meta/recipes-kernel/lttng/babeltrace2_2.0.2.bb:do_fetch) failed with exit code '1'

It seems that -crosssdk image pulls lttng which in turn pulls babeltrace2. And for any reason, the fetch URI is invalid. On many different hosts, I get the following error:

git clone git://git.linuxfoundation.org/diamon/babeltrace.git
Cloning into 'babeltrace'...
fatal: unable to connect to git.linuxfoundation.org:
git.linuxfoundation.org[0: 3.13.31.214]: errno=Connection timed out

I have no real explanation because it used to work...

Maybe this is an issue from "here" (where we stand) but in any case, we've been asking for a long time to have CI tests on -crosssdk images and I haven't seen any ATM.

We've also been asking for "full clean builds from scratch" from time to time, especially for releases: RCs are good candidates for this. This would help to highlight such issues.

Also at the end, enabling ptests on CI would also help because, we're supposed to run QA stuff on images, no ? What if ptest don't even build ?