Connection Error with Rust

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Connection Error message appears and the agent chat cannot be used again. Need to open a new one to continue.

Steps to Reproduce

When the agent executes a Powershell command with " | Select-Object -First 50 " to compile in Rust, it stops the agent and shows the message

Expected Behavior

No message and the chat agent should continue working.

Screenshots / Screen Recordings

Communication_error.jpg
Communication_error.jpg926×793 98.3 KB

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.2.20 (system setup)
VSCode Version: 1.105.1
Commit: b3573281c4775bfc6bba466bf6563d3d498d1070
Date: 2025-12-12T06:29:26.017Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.26200

For AI issues: which model did you use?

Auto

For AI issues: add Request ID with privacy disabled

Request ID: 9d7da352-93a3-46d7-a2e1-3520ce4f5487

Does this stop you from using Cursor

No - Cursor works, but with this issue

Working error after sending prompt
2

Hey there!

This actually looks a lot like this thread when comparing the backend logs.

I’m following up on this!

3

Hey @Ruben_De_Araujo

I’ve gotten to the point where I can consistently reproduce this when a command with a lot of output is piped to Select-Object -First 50. I’ve reported this as a bug.

As a workaround, you can try manually editing the command to remove 2>&1 | Select-Object -First 50, but this isn’t a great fix.

1 Like
4

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