[BUG] 2.0.55 on Ubuntu can't start due to TypeError

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

After upgrading from 2.0.53 to 2.0.55 claude doesn't start:

$ claude
 6 |     "use strict";
 7 | 
 8 |     //
 9 |     if (entry.instantiate)
10 |         return entry.instantiate;
11 |     var instantiatePromise = (async () => {
                                               ^
TypeError: Expected CommonJS module to have a function wrapper. If you weren't messing around with Bun's internals, this is a bug in Bun

Bun v1.3.2 (Linux x64 baseline)

Reverting to 2.0.53 works, but then it auto upgrades it self back to 2.0.55 so I need to downgrade befopre each time I need to start claude

seems to not have an issue on another Ubuntu I have (same version)

What Should Happen?

claude command should work

Error Messages/Logs

$ claude
 6 |     "use strict";
 7 | 
 8 |     //
 9 |     if (entry.instantiate)
10 |         return entry.instantiate;
11 |     var instantiatePromise = (async () => {
                                               ^
TypeError: Expected CommonJS module to have a function wrapper. If you weren't messing around with Bun's internals, this is a bug in Bun

Bun v1.3.2 (Linux x64 baseline)

Steps to Reproduce

1. install 2.0.55 on Ubuntu
2. run claude

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.53

Claude Code Version

2.0.55

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_