Seen in this patch for example, where I try to build an earlier version of rabbitmq: https://review.opendev.org/c/openstack/kolla/+/918973
Relevant excerpt from kolla-build logs:
```
INFO:kolla.common.utils.kolla-toolbox:The following packages have unmet dependencies:
INFO:kolla.common.utils.kolla-toolbox: rabbitmq-server : Depends: erlang-base (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: erlang-base-hipe (>= 1:26.0) but it is not installable or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-crypto (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-eldap (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-inets (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-mnesia (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-os-mon (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-parsetools (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-public-key (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-runtime-tools (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-ssl (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-syntax-tools (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-tools (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox: Depends: erlang-xmerl (>= 1:26.0) but 1:25.3.2.12-1rmq1ppa1~ubuntu22.04.1 is to be installed or
INFO:kolla.common.utils.kolla-toolbox: esl-erlang (>= 1:26.0) but it is not installable
INFO:kolla.common.utils.kolla-toolbox:[91mE: Unable to correct problems, you have held broken packages.
```
I think this will also cause us issues next time RabbitMQ makes a release, so should be fixed in master.
Fix proposed to branch: master /review. opendev. org/c/openstack /kolla/ +/920037
Review: https:/