While working on reproducible builds for openSUSE, I found that our
python313:nogil and python314:nogil multibuild packages fail a test on
1-core-CPUs:
osc co openSUSE:Factory/python313 && cd $_
osc build -M=nogil --noservice --vm-type=kvm --clean -j1

build log has:

[12681s] 4 tests skipped (resource denied):
[12681s]     test_peg_generator test_tkinter test_ttk test_zipfile64
[12681s]
[12681s] 1 re-run test:
[12681s]     test.test_concurrent_futures.test_deadlock
[12681s]
[12681s] 1 test failed:
[12681s]     test.test_concurrent_futures.test_deadlock
[12681s]
[12681s] 448 tests OK.
[12681s]
[12681s] Total duration: 3 hour 34 sec
[12681s] Total tests: run=43,024 (filtered) skipped=1,817
[12681s] Total test files: run=465/468 (filtered) failed=1 skipped=15
resource_denied=4 rerun=1
[12681s] Result: FAILURE then FAILURE
[12681s] make: *** [Makefile:2203: test] Error 2
[12681s] error: Bad exit status from /var/tmp/rpm-tmp.c8weBa (%check)