Bug#1052882: xtensor: FTBFS: make[1]: *** [debian/rules:65: override_dh_auto_configure] Error 2

[Drew Parsons]

Source: xtensor
Followup-For: Bug #1052882
Control: fixed 1052882 0.24.7-1

This bug is weird, in the sense that xtensor 0.24.3-2 in testing
failed its test against xsimd 10.0.0-3 from unstable.

So why then did the migration daemon allow xsimd to migrate from
unstable to testing?