New GitHub issue #121988 from colesbury:<br>

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Looks like it started with ac07451116d52dd6a5545d27b6a2e3737ed27cf0 (cc @AlexWaygood).

https://buildbot.python.org/#/builders/259/builds/1189
https://buildbot.python.org/#/builders/1226/builds/2261

The last time this occurred (https://github.com/python/cpython/issues/121605) was because:
1) The refleaks buildbots run with a really long value for `SHORT_TIMEOUT`
2) `run_repl` was hanging until the timeout expired
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<a href="https://github.com/python/cpython/issues/121988">View on GitHub</a>
<p>Labels: tests, topic-repl</p>
<p>Assignee: </p>