note: This error originates from a subprocess, and is likely not a problem with pip. ERROR: Failed cleaning build dir for numpy

It seems that you encountered an error while trying to clean the build directory for numpy. This error is likely not related to pip itself but rather with a subprocess that was executed during the process.

To troubleshoot this issue, you can try the following steps:

1. Make sure you have the latest version of pip installed by running `pip install --upgrade pip`.

2. Check if there are any permission issues with the build directory. Try running the command with administrative privileges or using `sudo` (for Unix-based systems).

3. If the error persists, you can manually delete the build directory for numpy. The location of the build directory can vary depending on your system, but it is usually located within the numpy package folder. You can find the location by running `pip show numpy`.

4. After deleting the build directory, try reinstalling numpy by running `pip install numpy`.

If none of these solutions work, please provide more details about your environment and the exact error message you are seeing so that I can assist you further.