uid [ unknown] Ubuntu Archive Automatic Signing Key (2012) <ftpmaster@ubuntu.com>

/etc/apt/trusted.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=nile --arch=arm64 PACKAGEBUILD-113032
Updating target for build PACKAGEBUILD-113032
Get:1 http://archive.build.openkylin.top/openkylin nile InRelease [32.9 kB]
Get:2 http://archive.build.openkylin.top/openkylin nile-security InRelease [32.9 kB]
Get:3 http://archive.build.openkylin.top/openkylin nile-updates InRelease [32.9 kB]
Get:4 http://archive.build.openkylin.top/openkylin nile-proposed InRelease [32.9 kB]
Get:5 http://archive.build.openkylin.top/OTHER/Internal-mirror/repack6/baseok0 nile InRelease [5617 B]
Get:6 http://archive.build.openkylin.top/OTHER/Internal-mirror/arm64-stage0 nile InRelease [2866 B]
Get:7 http://archive.build.openkylin.top/openkylin nile/main arm64 Packages [5450 kB]
Get:8 http://archive.build.openkylin.top/openkylin nile-security/main arm64 Packages [10.3 kB]
Get:9 http://archive.build.openkylin.top/openkylin nile-proposed/main arm64 Packages [4816 kB]
Get:10 http://archive.build.openkylin.top/OTHER/Internal-mirror/repack6/baseok0 nile/main arm64 Packages [26.5 MB]
Get:11 http://archive.build.openkylin.top/OTHER/Internal-mirror/arm64-stage0 nile/main arm64 Packages [2480 B]
Fetched 36.9 MB in 4s (9596 kB/s)
Reading package lists...
Reading package lists...
Building dependency tree...
Reading state information...
Calculating upgrade...