Actually, we have lintian errors on the packages in the archive:
E: guile-1.6-libs: md5sum-mismatch usr/lib/libguile-srfi-srfi-4-v-1.la
E: guile-1.6-libs: md5sum-mismatch usr/lib/libguile-srfi-srfi-13-14-v-1.la
E: guile-1.6-libs: md5sum-mismatch usr/lib/libguilereadline-v-12.la
E: guile-1.6-dev: md5sum-mismatch usr/lib/libguile-ltdl.la
E: guile-1.6-dev: md5sum-mismatch usr/lib/libguile.la
I tried rebuilding guile-1.6 in a clean sid pbuilder chroot on amd64
and could not reproduce the error. So a binNMU might be sufficient to
fix this.