format-stress-smoke-test-2 failed on ~ Ubuntu 18.04 zSeries

Host: ubuntu1804-z-5.dallasisv.build.10gen.cc
Project: WiredTiger (develop)
Commit: diff: WT-7754 Fix race when updating block manager file handle (#6747)

This patch ensures that the block manager file handle is always valid when we switch files during flush_tier. The issue was that both wt_open() and wt_close set their file handle arg to NULL. The change uses temp variables so we avoid passing the block manager's file handle pointer to those functions. | 06 Jul 21 15:01 UTC
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Task Logs (format-stress-smoke-test-2)