I don't know myself which xsimd test is which in order to implement the
scalar test division discussed in upstream Issue#756. For sure upstream
will know.
While we're resolving that, one simple thing we could do temporarily for
the packaging is to restrict the CI tests to only run on the known
vector-supported arches. This can be done with just an Architecture:
field added to the Test entries in debian/tests/control.
e.g. could copy the restricted Architecture line from debian/control
over to the two tests in debian/tests/control, and then update
debian/control to Architecture: any.
Drew