Started by upstream project "<a href='/ocaml/job/main/' class='jenkins-table__link model-link model-link--float'>main</a>" build number <a href='/ocaml/job/main/4845' class='jenkins-table__link model-link model-link--float'>4845</a>
originally caused by:
 Started by GitHub push by nojb
Running as SYSTEM
Building remotely on <a href='/ocaml/computer/ocaml-centos-oldest' class='jenkins-table__link model-link model-link--float'>ocaml-centos-oldest</a> (linux active) in workspace /builds/workspace/main/flambda/false/label/ocaml-centos-oldest
The recommended git tool is: git
using credential 1460efba-98da-4ca5-9696-a7e681202cc4
 &gt; git rev-parse --resolve-git-dir /builds/workspace/main/flambda/false/label/ocaml-centos-oldest/.git # timeout=10
Fetching changes from the remote Git repository
 &gt; git config remote.origin.url <a href='https://github.com/ocaml/ocaml'>https://github.com/ocaml/ocaml</a> # timeout=10
Fetching upstream changes from <a href='https://github.com/ocaml/ocaml'>https://github.com/ocaml/ocaml</a>
 &gt; git --version # timeout=10
 &gt; git --version # 'git version 1.8.3.1'
using GIT_SSH to set credentials Credential used by Jenkins to login to GitHub over SSH
 &gt; git fetch --tags --progress <a href='https://github.com/ocaml/ocaml'>https://github.com/ocaml/ocaml</a> +refs/heads/*:refs/remotes/origin/* # timeout=30
Checking out Revision 4e07432c54839ec9cf5b4d488f4083d00d6ffe71 (origin/5.4)
 &gt; git config core.sparsecheckout # timeout=10
 &gt; git checkout -f 4e07432c54839ec9cf5b4d488f4083d00d6ffe71 # timeout=30
Commit message: "Unicode changes in Format should be treated as breaking changes (#14272)"
 &gt; git rev-list --no-walk 33f2c1acc1549b2d412564707621f5ac6fac1df3 # timeout=10
No emails were triggered.
New run name is 'origin/5.4-#4845'
[ocaml-centos-oldest] $ /bin/sh -xe /tmp/jenkins6542270401000849807.sh
+ ./tools/ci/inria/launch ./tools/ci/inria/main
+ case "${OCAML_ARCH}" in
+ exec ./tools/ci/inria/main
tools/ci/inria/main:
arguments: 
OCAML_CONFIGURE_OPTIONS=
OCAML_JOBS=
OCAML_4_ONLY=true
This machine/OS does not support OCaml 5. Stopping now.
No emails were triggered.
Finished: SUCCESS