Right now due to rotation the archive with the clickhouse-server.log
maybe not full, for example:
- not full - https://clickhouse-test-reports.s3.yandex.net/16947/caf5f98db2ae39dd911f7d1fc0a7c2cc382b1c53/functional_stateless_tests_(ubsan)/clickhouse-server.log (no messages about server start)
- full     - https://clickhouse-test-reports.s3.yandex.net/16993/d1f52dc72d417580c4088cf3880593176416bea2/functional_stateless_tests_(thread).html

And sometimes rotated part may include relative part of the log, so it
is better to disable it.