Which in turn is the result of "apt update" failing to download files in an earlier job:
E: Failed to fetch https://downloads.osmocom.org/packages/osmocom:/nightly/Debian_13/./Packages.gz File has unexpected size (210767 != 210491). Mirror sync in progress? [IP: 148.251.236.141 443] Hashes of expected file: - Filesize:210491 [weak] - SHA256:a0cdea838b724880f455d68eb433f6331a7d4113c2eb677ca2f7f6dbdf9a72e1 - SHA1:71780896257ca550e51b95e77fee4c63fcc9980c [weak] - MD5Sum:531a2d49d4e9f3ff121ca6aa5be602fc [weak] Release file created at: Sun, 26 Apr 2026 08:48:04 +0000 E: Some index files failed to download. They have been ignored, or old ones used instead.