Linkage to last mutator to its parent not set -> last 2 nodes get lost

5 jobs for grebing_luong_workbranch in 2 minutes and 45 seconds (queued for 2 seconds)
Name Stage Failure
failed
deploy Deploy There is an unknown failure, please try again

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BUILD FAILED in 9s
1 actionable task: 1 executed
ERROR: Job failed: exit code 1
failed
build:jdk9 Build There is an unknown failure, please try again

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BUILD FAILED in 25s
1 actionable task: 1 executed
ERROR: Job failed: exit code 1
failed
test Test There is an unknown failure, please try again

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1 actionable task: 1 executed
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BUILD FAILED in 8s
ERROR: Job failed: exit code 1
failed
build:jdk10 Build There is an unknown failure, please try again

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BUILD FAILED in 21s
1 actionable task: 1 executed
ERROR: Job failed: exit code 1