`test_datetime` leaks references

eclips4@suffering ~/p/p/cpython (main) [2]> ./python.exe -m test -R 3:3 test_datetime
Using random seed: 2105768348
Raised RLIMIT_NOFILE: 256 -> 1024
0:00:00 load avg: 19.81 Run 1 test sequentially in a single process
0:00:00 load avg: 19.81 [1/1] test_datetime
beginning 6 repetitions. Showing number of leaks (. for 0 or less, X for 10 or more)
123:456
XXX XXX
test_datetime leaked [24, 24, 24] memory blocks, sum=72
0:00:22 load avg: 13.26 [1/1/1] test_datetime failed (reference leak)

== Tests result: FAILURE ==

1 test failed:
    test_datetime

Total duration: 22.8 sec
Total tests: run=1,088 skipped=31
Total test files: run=1/1 failed=1
Result: FAILURE