Flaky check description states integration tests are executed 10 times in parallel, see below:

Checks if new added or modified tests are flaky by running them repeatedly, in parallel, with more randomization. Functional tests are run 100 times with address sanitizer, and additional randomization of thread scheduling. Integration tests are run up to 10 times. If at least once a new test has failed, or was too long, this check will be red. We don't allow flaky tests, read the doc

This is a problem for integration tests that do not randomize entity names, it causes execeptions like: Code: 57. DB::Exception: Received from 172.16.3.2:9000. DB::Exception: Table test.view_2 already exists. Stack trace: and Code: 493. DB::Exception: Received from 172.16.5.2:9000. DB::Exception: user emma: cannot insert because user emma already exists in local_directory. Stack trace:.

https://s3.amazonaws.com/clickhouse-test-reports/65277/a22f9fd91f66d1e89e89eb8e70b2784351f6e776/integration_tests_flaky_check__asan_/integration_run_flaky_0.log