mpi and reprotest as root

Hello, I am working on a software which use mpirun and the reprotest failed with this error message

https://salsa.debian.org/picca/bitshuffle/-/jobs/746388

so it seems that mpi does not like be run as root. There is a way to fix this on the comman dline, but I think that this is wrong and the real problem is to run reprotest as root.

cheers