Nightly CI failed on 2026-09-23 #6134

The nightly CI run against main at cccc08b did not pass: https://github.com/apache/datafusion-comet/actions/runs/35826832417

Jobs that did not succeed:

• PR Build (Linux) / Spark 4.2, JDK 17 [scans] (failure)
• PR Build (Linux) / Spark 3.4, JDK 17, Scala 2.12 [exec] (failure)
• Required Checks (failure)

The nightly tier runs the Spark and Iceberg versions the merge queue does not
(see POLICY in dev/ci/compute-changes.py). Close this issue once the failure
is understood; the next red nightly opens a new one.