Hi,
this does not try to write to soumith’s computer, but the the source file location is embedded into the error message when the pytorch library is compiled. Apparently the conda builds are done in the directory /data/users/soumith/miniconda2/conda-bld.
If you compile pytorch from source, you get to have your own path there. 
The path that it appears to try to write to is /torch_6487_1133870694 (at the filesystem root) and you would not want to have it there. I would suspect that you either don’t have TEMP not set or some other other path wrong. Maybe you have an empty path where you would want ‘.’ instead.
Best regards
Thomas