The daily mediawiki-core-phpmetrics job has been failing with the same error since March 26, 2026. Output from a recent example (https://integration.wikimedia.org/ci/job/mediawiki-core-phpmetrics/703/):
15:34:01 > git fetch --tags --force --progress --depth=1 -- https://gerrit.wikimedia.org/r/p/mediawiki/core.git +refs/heads/*:refs/remotes/origin/* # timeout=10 15:36:02 ERROR: Error cloning remote repo 'origin' 15:36:02 hudson.plugins.git.GitException: Command "git fetch --tags --force --progress --depth=1 -- https://gerrit.wikimedia.org/r/p/mediawiki/core.git +refs/heads/*:refs/remotes/origin/*" returned status code 128: 15:36:02 stdout: 15:36:02 stderr: warning: redirecting to https://gerrit.wikimedia.org/r/mediawiki/core.git/ 15:36:02 remote: Counting objects: 1 15:36:02 remote: Counting objects: 167559, done ... Receiving objects: 34% (57561/167559), 75.11 MiB | 5.07 MiB/s Receiving objects: 35% (58646/167559), 77.76 MiB | 4.56 MiB/s fatal: early EOF fatal: fetch-pack: invalid index-pack output