backup: TestRestoreEntryCover9 failed

backup.TestRestoreEntryCover9 [failed](https://mesolite.cluster.engflow.com/invocations/default/37ef2b48-3634-4013-aaa2-520e5a9ed408?testReportRun=3&testReportShard=1&testReportAttempt=1#targets-Ly9wa2cvYmFja3VwOmJhY2t1cF90ZXN0) on release-25.4.17-rc @ [3981ecae25dbf445f122d375bf813b8859158a14](https://github.com/cockroachdb/cockroach/commits/3981ecae25dbf445f122d375bf813b8859158a14):

```
=== RUN TestRestoreEntryCover9
test_log_scope.go:171: test logs captured to: outputs.zip/logTestRestoreEntryCover9400285324
test_log_scope.go:82: use -show-logs to present logs inline
test_server_shim.go:154: automatically injected an external process virtual cluster under test; see comment at top of test_server_shim.go for details.
testutils.go:307: no Invalid Descriptors
```

Parameters:
- attempt=1
- race=true
- run=3
- shard=1
Help

See also: [How To Investigate a Go Test Failure \(internal\)](https://cockroachlabs.atlassian.net/l/c/HgfXfJgM)

/cc @cockroachlabs/disaster-recovery

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*TestRestoreEntryCover9.*&sort=title+created&display=lastcommented+project) | [Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Start by rerunning backup.TestRestoreEntryCover9 with the reported race=true, run=3, and shard=1 parameters, then inspect the captured logs at outputs.zip/logTestRestoreEntryCover9400285324. Read test_log_scope.go and test_server_shim.go for the test harness context; done means identifying and fixing the failure so the test passes reliably under the reported configuration.

Written by the indexing model from the issue text.