Bug#1006788: bagel: autopkgtest failure with new mpich.

[peter green]

Package: bagel
Version: 1.2.2-3
Severity: serious
x-debbugs-cc: mpich at packages.debian.org

bagel's autopkgtest is failing on amd64 with mpich 4.0.1-1 and hence
blocking it's migration to testing and hence blocking the finalisation
of the slurm-wlm transition.

https://ci.debian.net/data/autopkgtest/testing/amd64/b/bagel/19726694/log.gz

> running test case 'he3_svp_asd-dmrg'... FAILED.