CC @davidism.

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot ARM Raspbian 3.x has failed when building commit 8026cda.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/424/builds/3671) and take a look at the build logs.
4. Check if the failure is related to this commit (8026cda) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/424/builds/3671

Summary of the results of the build (if available):

== Tests result: ENV CHANGED ==

412 tests OK.

10 slowest tests:

• test_venv: 7 min 9 sec
• test_asyncio: 6 min 32 sec
• test_largefile: 5 min 18 sec
• test_multiprocessing_spawn: 4 min 28 sec
• test_multiprocessing_main_handling: 4 min 15 sec
• test_math: 4 min 12 sec
• test_concurrent_futures: 3 min 7 sec
• test_shelve: 2 min 47 sec
• test_zipfile: 2 min 41 sec
• test_tokenize: 2 min 30 sec

1 test altered the execution environment:
test_multiprocessing_spawn

20 tests skipped:
test_devpoll test_idle test_ioctl test_kqueue test_launcher
test_msilib test_peg_generator test_perf_profiler test_startfile
test_tcl test_tix test_tkinter test_ttk test_ttk_textonly
test_turtle test_winconsoleio test_winreg test_winsound test_wmi
test_zipfile64

Total duration: 33 min 7 sec