test.test_buffer.TestBufferProtocol.test_array_alignment fails on Linux/i586 in 3.15.0~a6

[mcepl]

Bug report

Bug description:

When running the test suite for openSUSE/Linux on 32bit architectures (i586 and armv7l), I get this test failing

[ 3014s] ======================================================================
[ 3014s] FAIL: test_array_alignment (test.test_buffer.TestBufferProtocol.test_array_alignment)
[ 3014s] ----------------------------------------------------------------------
[ 3014s] Traceback (most recent call last):
[ 3014s]   File "/home/abuild/rpmbuild/BUILD/python315-nogil-3.15.0_a6-build/Python-3.15.0a6/Lib/test/test_buffer.py", line 4480, in test_array_alignment
[ 3014s]     self.assertEqual(
[ 3014s]     ~~~~~~~~~~~~~~~~^
[ 3014s]         [_testcapi.buffer_pointer_as_int(case) % align for case in cases],
[ 3014s]         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[ 3014s]         [0] * len(cases),
[ 3014s]         ^^^^^^^^^^^^^^^^^
[ 3014s]     )
[ 3014s]     ^
[ 3014s] AssertionError: Lists differ: [0, 4, 0, 0, 0, 0, 0, 0, 0, 0] != [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
[ 3014s] 
[ 3014s] First differing element 1:
[ 3014s] 4
[ 3014s] 0
[ 3014s] 
[ 3014s] - [0, 4, 0, 0, 0, 0, 0, 0, 0, 0]
[ 3014s] ?     ---
[ 3014s] 
[ 3014s] + [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
[ 3014s] ?                          +++
[ 3014s] 
[ 3014s] 
[ 3014s] ----------------------------------------------------------------------
[ 3014s] Ran 97 tests in 11.932s
[ 3014s] 
[ 3014s] FAILED (failures=1, skipped=2)

Complete build log with all packages used and steps taken to reproduce.

It seems that _testcapi module has been correctly build.

CPython versions tested on:

3.15

Operating systems tested on:

Linux