If that is indeed bug #1699772, then updating the kernel on the launchpad builders should fix it.
I just did a (failed) build in a PPA, and the kernel version was:
Kernel reported to sbuild: 4.4.0-81-generic #104-Ubuntu SMP Wed Jun 14 08:17:06 UTC 2017 i686
If that is indeed bug #1699772, then updating the kernel on the launchpad builders should fix it.
I just did a (failed) build in a PPA, and the kernel version was:
Kernel reported to sbuild: 4.4.0-81-generic #104-Ubuntu SMP Wed Jun 14 08:17:06 UTC 2017 i686
Supposedly kernel 4.4.0-83.106 has the fix.