roachtest: backup/ceph/squid/tls failed

**Note:** This build has runtime assertions enabled. If the same failure was hit in a run without assertions enabled, there should be a similar failure without this message. If there isn't one, then this failure is likely due to an assertion violation or (assertion) timeout.

roachtest.backup/ceph/squid/tls [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/21398691?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyGceBazel/21398691?buildTab=artifacts#/backup/ceph/squid/tls) on release-25.4.12-rc @ [48a9c00ec285b5db4ec693c2aa0909f338c89fc2](https://github.com/cockroachdb/cockroach/commits/48a9c00ec285b5db4ec693c2aa0909f338c89fc2):

```
(cluster.go:2659).Run: full command output in run_063714.831098010_n4_tmpcephInitsh.log: COMMAND_PROBLEM: exit status 1
test artifacts and logs in: /artifacts/backup/ceph/squid/tls/cpu_arch=fips/run_1
```

Parameters:
- arch=fips
- cloud=gce
- coverageBuild=false
- cpu=4
- encrypted=true
- fs=ext4
- localSSD=true
- metamorphicBufferedSender=true
- metamorphicLeases=leader
- runtimeAssertionsBuild=true
- ssd=0
Help

See: [roachtest README](https://github.com/cockroachdb/cockroach/blob/master/pkg/cmd/roachtest/README.md)

See: [How To Investigate \(internal\)](https://cockroachlabs.atlassian.net/l/c/SSSBr8c7)

See: [Grafana](https://go.crdb.dev/roachtest-grafana/teamcity-21398691/backup-ceph-squid-tls/1782282987584/1782283262352)

Same failure on other branches

- #171841 roachtest: backup/ceph/squid/tls failed [C-test-failure O-roachtest O-robot T-field-eng branch-release-26.1.6-rc]
- #169611 roachtest: backup/ceph/squid/tls failed [C-test-failure O-roachtest O-robot T-field-eng branch-release-25.4]
- #169603 roachtest: backup/ceph/squid/tls failed [C-test-failure O-roachtest O-robot T-field-eng branch-release-25.2]
- #168681 roachtest: backup/ceph/squid/tls failed [C-test-failure O-roachtest O-robot T-field-eng branch-release-26.1]
- #166352 roachtest: backup/ceph/squid/tls failed [C-test-failure O-roachtest O-robot T-field-eng branch-release-26.1.2-rc]
- #165775 roachtest: backup/ceph/squid/tls failed [C-test-failure O-roachtest O-robot T-field-eng branch-master]

/cc @cockroachlabs/field-engineering

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*backup/ceph/squid/tls.*&sort=title+created&display=lastcommented+project) | [Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Jira issue: CRDB-65068

Start with the failure artifact at /artifacts/backup/ceph/squid/tls/cpu_arch=fips/run_1 and run_063714.831098010_n4_tmpcephInitsh.log, then read pkg/cmd/roachtest/README.md and inspect cluster.go:2659. Compare the repeated failures listed in this issue and use the linked TeamCity log or Grafana view to determine the cause; done means the backup/ceph/squid/tls test passes on the affected configuration.

Written by the indexing model from the issue text.