Hello, The "publish" test has been running for 28 hours on hydra-guix-126. The matching process is: --8<---------------cut here---------------start------------->8--- guixbui+ 58019 109 0.2 4052284 465988 ? Rl Jan10 1718:33 /gnu/store/dxvxl29bb1kzqgb9bz8gfcyag177g9vj-guile-3.0.5/bin/guile --no-auto-compile -e main ./build-aux/test-driver.scm --test-name tests/publish.scm --log-file tests/publish.log --trs-file tests/publish.trs --color-tests no --enable-hard-errors yes --expect-failure no --brief=yes -- ./tests/publish.scm --8<---------------cut here---------------end--------------->8--- An strace log of this process is attached. I would suspect "with cache, cache bypass" test given that the looping connection is made on port 6788. Thanks, Mathieu