sted.gpg.d/ubuntu-keyring-2012-cdimage.gpg
------------------------------------------------------
pub rsa4096 2012-05-11 [SC]
      8439 38DF 228D 22F7 B374 2BC0 D94A A3F0 EFE2 1092
uid [ unknown] Ubuntu CD Image Automatic Signing Key (2012) <cdimage@ubuntu.com>

/etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg
------------------------------------------------------
pub rsa4096 2018-09-17 [SC]
      F6EC B376 2474 EDA9 D21B 7022 8719 20D1 991B C93C
uid [ unknown] Ubuntu Archive Automatic Signing Key (2018) <ftpmaster@ubuntu.com>

RUN: /usr/share/launchpad-buildd/bin/in-target update-debian-chroot --backend=chroot --series=huanghe --arch=amd64 PACKAGEBUILD-444096
Updating target for build PACKAGEBUILD-444096
Get:1 http://ppa.build.openkylin.top/kylinsoft/anything3.0/openkylin huanghe InRelease [56.4 kB]
Get:2 http://archive.build.openkylin.top/openkylin huanghe-proposed InRelease [43.6 kB]
Get:3 http://archive.build.openkylin.top/openkylin huanghe InRelease [43.5 kB]
Get:4 http://archive.build.openkylin.top/openkylin huanghe-security InRelease [43.6 kB]
Get:5 http://archive.build.openkylin.top/openkylin huanghe-updates InRelease [43.6 kB]
Hit:6 http://archive.build.openkylin.top/OTHER/Internal-mirror/repack6/baseok0 nile InRelease
Hit:7 http://archive.build.openkylin.top/OTHER/Internal-mirror/amd64-stage0 nile InRelease
Ign:1 http://ppa.build.openkylin.top/kylinsoft/anything3.0/openkylin huanghe InRelease
Get:8 http://ppa.build.openkylin.top/kylinsoft/anything3.0/openkylin huanghe/main amd64 Packages [8254 kB]
Get:9 http://archive.build.openkylin.top/openkylin huanghe-proposed/main amd64 Packages [2986 kB]
Get:10 http://archive.build.openkylin.top/openkylin huanghe-proposed/pty amd64 Packages [58.1 kB]
Get:11 http://archive.build.openkylin.top/openkylin huanghe/main amd64 Packages [3315 kB]
Get:12 http://ppa.build.openkylin.top/kylinsoft/anything3.0/openkylin huanghe/main Translation-en [467 kB]
Get:13 http://archive.build.openkylin.top/openkylin huanghe/pty amd64 Packages [60.4 kB]