The build of qbs for alpha (admittedly not a release architecture)
failed with many test suite errors, as detailed at
https://buildd.debian.org/status/fetch.php?pkg=qbs&arch=alpha&ver=1.8.1%2Bdfsg-4&stamp=1505226406&raw=0:

  Totals: 80 passed, 94 failed, 54 skipped, 0 blacklisted, 87187ms
  ********* Finished testing of TestBlackbox *********
  Makefile:371: recipe for target 'check' failed
  make[5]: *** [check] Error 94

Could you please take a look?

Thanks!