Unable to initialize VS Code Server -> the DevBox is stuck

[fchampreux]

🐛 bug report

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project
  adheres to.
• I have searched the issue tracker for an issue that matches the one I want
  to file, without success.

Description of the problem

The Devbox does not start. The following error is issued:
Failed to initialize VS Code Server: Error: Dev container installation failed. We've opened VS Code in web-only in the meantime

How has this issue affected you? What are you trying to accomplish?

I can't start my new project.

To Reproduce

I created a new DevBoxfrom the Server templates choosing Rails template.

Link to sandbox: link (optional)

Your Environment

Software	Name/Version
Сodesandbox
Browser
Operating System