@next/mdx with remark plugin incompatible with turbo

[juliusmarminge]

Link to the code that reproduces this issue

https://github.com/juliusmarminge/mdx-turbo-bug

To Reproduce

1. pnpm install
2. pnpm dev
3. Works
4. pnpm dev --turbo
5. See crash
6. Comment out the plugin in next config
7. pnpm dev --turbo
8. Works

Current vs. Expected behavior

Expect turbo to work with mdx plugins

Provide environment information

Node.js v20.15.1

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 24.1.0: Tue Sep 17 07:46:59 PDT 2024; root:xnu-11215.40.59~38/RELEASE_ARM64_T6000
  Available memory (MB): 16384
  Available CPU cores: 8
Binaries:
  Node: 20.15.1
  npm: 10.7.0
  Yarn: N/A
  pnpm: 9.12.1
Relevant Packages:
  next: 15.0.2-canary.6 // Latest available version is detected (15.0.2-canary.6).
  eslint-config-next: 15.0.2-canary.6
  react: 19.0.0-rc-1631855f-20241023
  react-dom: 19.0.0-rc-1631855f-20241023
  typescript: 5.6.3
Next.js Config:
  output: N/A

Which area(s) are affected? (Select all that apply)

Turbopack

Which stage(s) are affected? (Select all that apply)

next dev (local)

Additional context

No response

[juliusmarminge]

duplicate #71819

[github-actions]

This closed issue has been automatically locked because it had no new activity for 2 weeks. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.