basalt-26.3: roachtest: clearrange/checks=true failed

roachtest.clearrange/checks=true [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RedRoachtestNightlyGcePrivateBasaltBazel/21514323?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RedRoachtestNightlyGcePrivateBasaltBazel/21514323?buildTab=artifacts#/clearrange/checks=true) on basalt-26.3 @ [6234fcbae5d28540e0546767520c5c48d2935434](https://github.com/cockroachdb/cockroach/commits/6234fcbae5d28540e0546767520c5c48d2935434):

Failed with:

```
(test_runner.go:1649).runTest: test timed out (6h30m0s)
test artifacts and logs in: /artifacts/clearrange/checks=true/run_1
```
Cluster Node to Ip Mapping:
| Node | Public IP | Private IP |
| --- | --- | --- |
| teamcity-21514323-1789243781-03-n10cpu16-0001 | | 10.91.98.52 |
| teamcity-21514323-1789243781-03-n10cpu16-0002 | | 10.91.98.46 |
| teamcity-21514323-1789243781-03-n10cpu16-0003 | | 10.91.98.16 |
| teamcity-21514323-1789243781-03-n10cpu16-0004 | | 10.91.98.54 |
| teamcity-21514323-1789243781-03-n10cpu16-0005 | | 10.91.98.49 |
| teamcity-21514323-1789243781-03-n10cpu16-0006 | | 10.91.98.1 |
| teamcity-21514323-1789243781-03-n10cpu16-0007 | | 10.91.98.47 |
| teamcity-21514323-1789243781-03-n10cpu16-0008 | | 10.91.97.149 |
| teamcity-21514323-1789243781-03-n10cpu16-0009 | | 10.91.98.42 |
| teamcity-21514323-1789243781-03-n10cpu16-0010 | | 10.91.98.41 |

Parameters:
- MetamorphicBasaltMultiAZ=true
- arch=amd64
- cloud=gce
- coverageBuild=false
- cpu=16
- diskCount=0
- encrypted=false
- fs=ext4
- localSSD=true
- metamorphicLeases=epoch
- runtimeAssertionsBuild=false
- storageNodesVersion=v0.1.19-nightly.20260912
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-21514323/clearrange-checks-true/1789244388392/1789268136671)

_Logs were not uploaded to Datadog_

/cc @cockroachlabs/storage

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

Start with the clearrange/checks=true artifacts and logs under /artifacts/clearrange/checks=true/run_1, then consult pkg/cmd/roachtest/README.md and the linked Grafana view. Determine why the basalt-26.3 run timed out after 6h30m and confirm the roachtest completes without the timeout.

Written by the indexing model from the issue text.