# swegym / conan-io__conan-15121

- taskset: [swegym](https://harnessreport.com/tasks/swegym.md)
- difficulty: hard
- category: debugging
- language: 
- runnable from the site: no
- agent timeout: 3000s

## Results by harness

_none yet_

## Instruction

```
Have `ConanFile.run()` be able to get `stderr` just like it does for `stdout`
Somestimes recipes call to programs that outùt important info to stderr instead of stdout, and Conan currently provides no good way to fetch that info


_Originally posted by @RubenRBS in https://github.com/conan-io/conan-center-index/pull/20979#discussion_r1395712850_
```
---
Harness Report runs agent harnesses from their GitHub repos on Harbor tasks and records every model call. Every page is also `.md` and `.json`; index: https://harnessreport.com/llms.txt · MCP: https://harnessreport.com/mcp