https://launchpad.net/~build.snapcraft.io/+snap/d6cbd2a0ddd4ab07db62295793e4cc15/+build/1247789
RUN: /usr/share/launchpad-buildd/bin/builder-prep 
Kernel version: Linux lcy01-amd64-019 4.15.0-129-generic #132-Ubuntu SMP Thu Dec 10 14:02:26 UTC 2020 x86_64
Buildd toolchain package versions: launchpad-buildd_193~468~ubuntu18.04.1 python3-lpbuildd_193~468~ubuntu18.04.1 sbuild_0.75.0-1ubuntu1 bzr-builder_0.7.3+bzr174~ppa13~ubuntu16.04.1 bzr_2.7.0+bzr6622-10 git-build-recipe_0.3.6~git201906051340.ff11471~ubuntu18.04.1 git_1:2.17.1-1ubuntu0.7 dpkg-dev_1.19.0.5ubuntu2.3 python-debian_0.1.32 python3-debian_0.1.32.
Syncing the system clock with the buildd NTP service...
 6 Jan 20:20:17 ntpdate[1921]: adjust time server 10.211.37.1 offset -0.012898 sec
RUN: /usr/share/launchpad-buildd/bin/in-target unpack-chroot --backend=lxd --series=bionic --arch=amd64 SNAPBUILD-1247789 --image-type lxd /home/buildd/filecache-default/41b151d1548e4df3aa6a53cafa07224eb18722e7
Creating target for build SNAPBUILD-1247789
To start your first container, try: lxc launch ubuntu:18.04

RUN: /usr/share/launchpad-buildd/bin/in-target mount-chroot --backend=lxd --series=bionic --arch=amd64 SNAPBUILD-1247789
Starting target for build SNAPBUILD-1247789
RUN: /usr/share/launchpad-buildd/bin/in-target scan-for-processes --backend=lxd --series=bionic --arch=amd64 SNAPBUILD-1247789
Scanning for processes to kill in build SNAPBUILD-1247789
/usr/lib/python3/dist-packages/pylxd/models/_model.py:116: UserWarning: Attempted to set unknown attribute "location" on instance of "Container"
  key, self.__class__.__name__
/usr/lib/python3/dist-packages/pylxd/models/_model.py:116: UserWarning: Attempted to set unknown attribute "location" on instance of "Container"
  key, self.__class__.__name__