See the discussion at https://root-forum.cern.ch/t/rootcint-cannot-create-dictionary-in-a-vm/48580 .

In short, in certain situations in which the platform is Linux but the working directory belongs to a Windows file system, this call to std::rename fails because "Windows" does not allow renaming files that are currently in use.

Something like the logic that we already apply for Windows at