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[Bug] Parallel test configuration in Rails causes crash #407

@chris-olszewski

Description

@chris-olszewski

What are you really trying to do?

N/A

Describe the bug

Enabling parallelize in test cases triggers a crash:

...
/usr/lib/dyld
      103270000-103280000 r--/Users/olszewski/.rbenv/versions/4.0.1/lib/ruby/gems/4.0.0/gems/activesupport-8.0.4.1/lib/active_support/testing/parallelization/worker.rb:15:  [BUG]   /Users/olszewski/code/temporal/samples/ruby/rails_app/storage/test.sqlite3-3Aborted at 0x0000000183fa45e8
ruby 4.0.1 (2026-01-13 revision e04267a14b) +YJIT +PRISM [arm64-darwin24]
...

Minimal Reproduction

temporalio/samples-ruby#78

Environment/Versions

  • OS and processor: M1 Mac
  • Temporal Version: 1.3.0
  • Are you using Docker or Kubernetes or building Temporal from source? N/A

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