tests get stuck in 1-core VM

[bmwiedemann]

While working on reproducible builds for openSUSE, I found that
our python-quimb package got stuck after tests

The last line printed was

========= 2582 passed, 56 skipped, 15044 warnings in 593.32s (0:09:53) =========

while in a normal run (on 4-core) it looked like

========== 2582 passed, 56 skipped, 23 warnings in 594.80s (0:09:54) ===========

Could the large number of warnings break the warning-summary that would follow?

[jcmgray]

Hi @bmwiedemann, I'm afraid I'm not sure whats going on here, or whether a large number of warnings could break the pytest printout. The relevant thing for quimb I guess is what is causing all these warnings! e.g. is it mostly a single cause?