https://launchpad.net/ubuntu/+source/gcc-9-cross/4ubuntu2/+build/16549935
RUN: /usr/share/launchpad-buildd/bin/builder-prep 
Kernel version: Linux bos02-arm64-039 4.4.0-143-generic #169-Ubuntu SMP Thu Feb 7 07:58:55 UTC 2019 aarch64
Buildd toolchain package versions: launchpad-buildd_169 python-lpbuildd_169 sbuild_0.67.0-2ubuntu7.1 bzr-builder_0.7.3+bzr174~ppa13~ubuntu14.10.1 bzr_2.7.0-2ubuntu3.1 git-build-recipe_0.3.4~git201611291343.dcee459~ubuntu16.04.1 git_1:2.7.4-0ubuntu1.6 dpkg-dev_1.18.4ubuntu1.5 python-debian_0.1.27ubuntu2.
Syncing the system clock with the buildd NTP service...
 2 Apr 08:08:49 ntpdate[3009]: adjust time server 10.211.37.1 offset 0.001174 sec
RUN: /usr/share/launchpad-buildd/bin/in-target unpack-chroot --backend=chroot --series=disco --arch=arm64 PACKAGEBUILD-16549935 --image-type chroot /home/buildd/filecache-default/12198815be27835f4527655ec2ee7fabeb41ea11
Creating target for build PACKAGEBUILD-16549935
RUN: /usr/share/launchpad-buildd/bin/in-target scan-for-processes --backend=chroot --series=disco --arch=arm64 PACKAGEBUILD-16549935
Scanning for processes to kill in build PACKAGEBUILD-16549935