basalt-26.3.2-rc-20260914: sql/physicalplan: TestFakeSpanResolver failed

sql/physicalplan.TestFakeSpanResolver [failed](https://mesolite.cluster.engflow.com/invocations/default/36252f8d-8f49-40a2-b8b8-d6dd84ae76b7?testReportRun=2&testReportShard=3&testReportAttempt=1#targets-Ly9wa2cvc3FsL3BoeXNpY2FscGxhbjpwaHlzaWNhbHBsYW5fdGVzdA==) on basalt-26.3.2-rc-20260914 @ [d3eb08ebdd1dacc8d3dac0b107a7db5929e09969](https://github.com/cockroachdb/cockroach/commits/d3eb08ebdd1dacc8d3dac0b107a7db5929e09969):

```
=== RUN TestFakeSpanResolver
test_log_scope.go:172: test logs captured to: outputs.zip/logTestFakeSpanResolver3140115518
test_log_scope.go:82: use -show-logs to present logs inline
test_server_shim.go:168: automatically injected an external process virtual cluster under test; see comment at top of test_server_shim.go for details.
table_gen.go:51: error executing query="CREATE DATABASE IF NOT EXISTS test;CREATE TABLE test.t (k INT PRIMARY KEY, v INT);" args=[]: ERROR: dial tcp 127.0.0.1:43475: connect: connection refused
panic.go:694: -- test log scope end --
test logs left over in: outputs.zip/logTestFakeSpanResolver3140115518
--- FAIL: TestFakeSpanResolver (877.72s)
```

Parameters:
- attempt=1
- race=true
- run=2
- shard=3
Help

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

Same failure on other branches

- #174929 basalt-26.3: sql/physicalplan: TestFakeSpanResolver failed [C-test-failure O-robot T-sql-queries branch-basalt-26.3]
- #174919 basalt-26.3.2-rc-20260908: sql/physicalplan: TestFakeSpanResolver failed [C-test-failure O-robot T-sql-queries branch-basalt-26.3.2-rc-20260908]
- #174877 basalt-26.3: sql/physicalplan: TestFakeSpanResolver failed [C-test-failure O-robot T-sql-queries branch-basalt-26.3]
- #174785 basalt-26.3: sql/physicalplan: TestFakeSpanResolver failed [C-test-failure O-robot T-sql-queries branch-basalt-26.3]
- #172053 release-26.3: sql/physicalplan: TestFakeSpanResolver failed [C-test-failure O-robot T-sql-queries branch-release-26.3 v26.4.0-prerelease]

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

Start by reproducing sql/physicalplan.TestFakeSpanResolver with the reported race, run, and shard settings, then inspect the captured logs and the setup paths mentioned in test_server_shim.go and table_gen.go. Determine why the database connection on 127.0.0.1 is refused; done means the test starts its required process and passes reliably.

Written by the indexing model from the issue text.