@cloudflare/vitest-pool-workers broken in macOS after upgrade

[elct9620]

What versions & operating system are you using?

• Wrangler: v4.69.0 (Previous version: 4.67.0)
• vitest: 3.2.4
• vite: 7.3.1
• @cloudflare/vitest-pool-workers: 0.12.18
• @cloudflare/vite-plugin: 1.25.6
• The workerd version - https://github.com/cloudflare/workerd/releases/tag/v1.20260305.0

Please provide a link to a minimal reproduction

https://github.com/elct9620/gna

Describe the Bug

When running pnpm test or pnpm test:coverage, the tests failed by workerd error. I have 2 projects has different errors.

• Both work correctly before the Wrangler upgrade
• Unable to rollback (one project update, then all project fails)

Please provide any relevant error logs

Project 1 (Gna, Public):

• GitHub Action works correctly
• Need to use pkill to clean up workerd
• Run single test can pass

project1.txt

Note

Enable singleWorker fix this issue. The issue may related to too many tests.

---

Project 2 (Private, no CI because GitLab Self-Hosted Runner in Container does not work)

• Test case contains CJK

project2.txt

[petebacondarwin]

I just tried your gna project locally... Using Node 22 and Wrangler 4.69.0

➜  gna git:(main) pnpm test

> Gna@ test /Users/pbacondarwin/dev/temp/gna
> vitest run


 RUN  v3.2.4 /Users/pbacondarwin/dev/temp/gna

[vpw:debug] Adding `enable_nodejs_tty_module` compatibility flag during tests as this feature is needed to support the Vitest runner.
[vpw:debug] Adding `enable_nodejs_fs_module` compatibility flag during tests as this feature is needed to support the Vitest runner.
[vpw:debug] Adding `enable_nodejs_http_modules` compatibility flag during tests as this feature is needed to support the Vitest runner.
[vpw:debug] Adding `enable_nodejs_perf_hooks_module` compatibility flag during tests as this feature is needed to support the Vitest runner.
[vpw:info] Starting single runtime for vitest.config.ts...
 ✓ tests/use-cases/use-cases.spec.ts (30 tests) 246ms
 ✓ tests/repository/subscriber-repository.spec.ts (24 tests) 183ms
 ✓ tests/api/profile.spec.ts (15 tests) 146ms
 ✓ tests/admin/admin.spec.ts (14 tests) 110ms
 ✓ tests/admin/test-email.spec.ts (7 tests) 36ms
 ✓ tests/api/confirm-email.spec.ts (7 tests) 51ms
 ✓ tests/api/subscribe.spec.ts (7 tests) 52ms
 ✓ tests/use-cases/send-email-commands.spec.ts (5 tests) 31ms
 ✓ tests/services/email-sender.spec.ts (2 tests) 14ms
 ✓ tests/services/notification-service.spec.ts (2 tests) 20ms
 ✓ tests/emails/base-email.spec.ts (2 tests) 18ms
 ✓ tests/index.spec.ts (7 tests) 38ms
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
 ✓ tests/api/unsubscribe.spec.ts (4 tests) 25ms
 ✓ tests/services/email-renderer.spec.ts (3 tests) 21ms
 ✓ tests/container.spec.ts (2 tests) 14ms

 Test Files  15 passed (15)
      Tests  131 passed (131)
   Start at  17:44:59
   Duration  35.01s (transform 1.25s, setup 31.73s, collect 138ms, tests 1.00s, environment 0ms, prepare 80ms)

This seems to work fine although there are some strange info: CODE_MOVED messages.

[astanciu]

I'm seeing the same logs:

workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
workerd/jsg/setup.c++:583: info: CODE_MOVED for unknown code block?
etc...