AzureStorageCleanupThirdPartyTests.testCleanup failures on CI

[gwbrown]

Build scan: https://gradle-enterprise.elastic.co/s/ftwfuwjjk5nv4

Repro line: ./gradlew ':plugins:repository-azure:azureThirdPartyTest' --tests "org.elasticsearch.repositories.azure.AzureStorageCleanupThirdPartyTests.testCleanup" -Dtests.seed=60997A36A0D370AE -Dtests.security.manager=true -Dtests.locale=hi -Dtests.timezone=America/Lima -Druntime.java=8

Reproduces locally?: No

Applicable branches: master, 7.x, 7.11

Failure history: build stats
First failure occurred 2020-12-17T00:03:45.235Z on 7.11.
Failure excerpt:

java.lang.AssertionError: java.lang.AssertionError: 	
Expected: iterable with items [] in any order	
     but: no match for: "foo"	
	at __randomizedtesting.SeedInfo.seed([60997A36A0D370AE:30B32998D97EE01B]:0)	
	at org.elasticsearch.repositories.blobstore.BlobStoreTestUtil.assertConsistency(BlobStoreTestUtil.java:136)	
	at org.elasticsearch.repositories.AbstractThirdPartyRepositoryTestCase.assertConsistentRepository(AbstractThirdPartyRepositoryTestCase.java:260)	
	at org.elasticsearch.repositories.AbstractThirdPartyRepositoryTestCase.testCleanup(AbstractThirdPartyRepositoryTestCase.java:218)	
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	
	at java.lang.reflect.Method.invoke(Method.java:498)	
	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1750)	
	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:938)	
	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:974)	
	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:988)	
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)	
	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)	
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)	
	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)	
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)	
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)	
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)	
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)	
	at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)	
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)	
	at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:947)	
	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:832)	
	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:883)	
	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:894)	
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)	
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)	
	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)	
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)	
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)	
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)	
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)	
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)	
	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)	
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)	
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)	
	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)	
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)	
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)	
	at java.lang.Thread.run(Thread.java:748)	
Caused by: java.lang.AssertionError: 	
Expected: iterable with items [] in any order	
     but: no match for: "foo"	
	at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18)	
	at org.junit.Assert.assertThat(Assert.java:956)	
	at org.junit.Assert.assertThat(Assert.java:923)	
	at org.elasticsearch.repositories.blobstore.BlobStoreTestUtil.assertSnapshotUUIDs(BlobStoreTestUtil.java:207)	
	at org.elasticsearch.repositories.blobstore.BlobStoreTestUtil.lambda$assertConsistency$0(BlobStoreTestUtil.java:127)	
	at org.elasticsearch.action.ActionRunnable.lambda$supply$0(ActionRunnable.java:58)	
	at org.elasticsearch.action.ActionRunnable$2.doRun(ActionRunnable.java:73)	
	at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:743)	
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)	
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)	
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)	
	at java.lang.Thread.run(Thread.java:748)

Mute incoming.

[elasticmachine]

Pinging @elastic/es-distributed (Team:Distributed)