I had a brief look at this - it is almost certainly a memory size issue. The test that is failing is at:

tests/integration/test_utilities/test_geometry_validation/test_geometry_validation.py

The memory usage is high because the test job runs over a 15 m long beamline with 5 mm step size in r, z and stores everything in memory. That is 150,000 steps, each of which is probably one or two hundred bytes or so in memory. I will fix it in a bit.