Bug #2077095 “Apt hangs when pulling from the internet in ARM bu…” : Bugs : Launchpad itself

Apt hanging in Launchpad builders has been often occurring in Chromium builds.

https://launchpad.net/~chromium-team/+snap/chromium-snap-from-source-stable/+build/2568852 started yesterday and is hung. The log “viewport” shows

—>
Get:26 http://ftpmaster.internal/ubuntu jammy/main arm64 libdb5.3 arm64 5.3.28+dfsg1-0.8ubuntu3 [714 kB]
Get:27 http://ftpmaster.internal/ubuntu jammy/main arm64 libgdbm6 arm64 1.23-1 [34.1 kB]
Get:28 http://ftpmaster.internal/ubuntu jammy/main arm64 libgdbm-compat4 arm64 1.23-1 [6294 B]
Get:29 http://ftpmaster.internal/ubuntu jammy-security/main arm64 zlib1g arm64 1:1.2.11.dfsg-2ubuntu9.2 [57.0 kB]
Get:30 http://ftpmaster.internal/ubuntu jammy/main arm64 debconf all 1.5.79ubuntu1 [126 kB]
Get:31 http://ftpmaster.internal/ubuntu jammy-security/main arm64 libcom-err2 arm64 1.46.5-2ubuntu1.1 [8974 B]
Get:32 http://ftpmaster.internal/ubuntu jammy/main arm64 libkeyutils1 arm64 1.6.1-2ubuntu3 [10.1 kB]
Get:33 http://ftpmaster.internal/ubuntu jammy-security/main arm64 libtirpc3 arm64 1.3.2-2ubuntu0.1 [82.4 kB]
Get:34 http://ftpmaster.internal/ubuntu jammy/main arm64 libnsl2 arm64 1.3.0-2build2 [41.4 kB]
Get:35 http://ftpmaster.internal/ubuntu jammy-security/main arm64 linux-libc-dev arm64 5.15.0-118.128 [1319 kB]
Get:36 http://ftpmaster.internal/ubuntu jammy-security/main arm64 gcc-12-base arm64 12.3.0-1ubuntu1~22.04 [20.1 kB]
Get:37 http://ftpmaster.internal/ubuntu jammy-security/main arm64 libgcc-s1 arm64 12.3.0-1ubuntu1~22.04 [39.7 kB]
Get:38 http://ftpmaster.internal/ubuntu jammy-updates/main arm64 base-files arm64 12ubuntu4.6 [62.4 kB]
Get:39 http://ftpmaster.internal/ubuntu jammy/main arm64 debianutils arm64 5.5-1ubuntu2 [106 kB]
Get:40 http://ftpmaster.internal/ubuntu jammy-security/main arm64 bash arm64 5.1-6ubuntu1.1 [762 kB]
Get:41 http://ftpmaster.internal/ubuntu jammy-security/main arm64 bsdutils arm64 1:2.37.2-4ubuntu3.4 [84.5 kB]
Get:42 http://ftpmaster.internal/ubuntu jammy-updates/main arm64 coreutils arm64 8.32-4.1ubuntu1.2 [1398 kB]
Get:43 http://ftpmaster.internal/ubuntu jammy/main arm64 libgpg-error0 arm64 1.43-3 [69.4 kB]
Get:44 http://ftpmaster.internal/ubuntu jammy/main arm64 libgcrypt20 arm64 1.9.4-3ubuntu3 [456 kB]
<—

https://launchpad.net/~chromium-team/+snap/chromium-snap-from-source-stable/+build/2568851 is just hung without any log.