Build failed in Jenkins: beam_PostCommit_Python_VR_Flink #390

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See <https://builds.apache.org/job/beam_PostCommit_Python_VR_Flink/390/display/redirect?page=changes>

Changes:

[rohde.samuel] Change incompatible message from referencing the output collection to

[ankurgoenka] [BEAM-4176] Enable Post Commit JAVA PVR tests for Flink

[ankurgoenka] [BEAM-4176] Adding start method back to the FlinkJobserverDriver

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.
----------------------------------------------------------------------
Ran 26 tests in 78.529s

OK (skipped=8)
:beam-sdks-python:flinkCompatibilityMatrixStreaming (Thread[Task worker for ':' Thread 8,5,main]) completed. Took 1 mins 20.683 secs.

FAILURE: Build failed with an exception.

* Where:
Build file '<https://builds.apache.org/job/beam_PostCommit_Python_VR_Flink/ws/src/sdks/python/build.gradle'> line: 351

* What went wrong:
Execution failed for task ':beam-sdks-python:flinkCompatibilityMatrixBatch'.
> Process 'command 'sh'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.10.2/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 11m 27s
59 actionable tasks: 58 executed, 1 up-to-date

Publishing build scan...
https://gradle.com/s/dlnykwuwc5uti

Build step 'Invoke Gradle script' changed build result to FAILURE
Build step 'Invoke Gradle script' marked build as failure

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