We have a Git Repo with Git LFS running but in the checkout step we didn't included the GitLFSPull  extension.

The log information was like a timeout:
git checkout -f 2681d96540445a86776443542a2ea3c6ad16cd81 # timeout=10
ERROR: Timeout after 10 minutes
After adding the extension it was possible to make the checkout without a problem.

I suggest a change in the logs if it is possible because checkout was done, only the files with LFS were not.

After including the GitLFSPull extension log info was:

 
> git checkout -f 2681d96540445a86776443542a2ea3c6ad16cd81 # timeout=10
> git config --get remote.origin.url # timeout=10
using GIT_ASKPASS to set credentials xxxx
> git lfs pull origin # timeout=10
 

Suggestion:

Log like "ERROR: Timeout after 10 minutes. Check GitLFSPull extension if it is activated"