UnixDomainSocketSpec: A Unix Domain Socket should not be able to connect to a non-existent file is flaky

[raboof]

[info] UnixDomainSocketSpec:
[info] A Unix Domain Socket
[info] - should receive some bytes (34 milliseconds)
[info] - should send and receive more ten times the size of a buffer !!! IGNORED !!!
[info] - should allow the client to close the connection (18 milliseconds)
[info] - should close the server once the client is also closed (1 second, 30 milliseconds)
[info] - should be able to materialize outgoing connection flow more than once (9 milliseconds)
[info] - should not be able to bind to socket in a non-existent directory (7 milliseconds)
[info] - should not be able to connect to a non-existent file *** FAILED *** (31 milliseconds)
[info]   Unexpected successful completion with value [None] (UnixDomainSocketSpec.scala:195)
[info]   org.scalatest.exceptions.TestFailedException:
[info]   at org.scalatest.Assertions.newAssertionFailedException(Assertions.scala:472)
[info]   at org.scalatest.Assertions.newAssertionFailedException$(Assertions.scala:471)
[info]   at docs.scaladsl.UnixDomainSocketSpec.newAssertionFailedException(UnixDomainSocketSpec.scala:38)
[info]   at org.scalatest.Assertions.fail(Assertions.scala:933)
[info]   at org.scalatest.Assertions.fail$(Assertions.scala:929)
[info]   at docs.scaladsl.UnixDomainSocketSpec.fail(UnixDomainSocketSpec.scala:38)
[info]   at docs.scaladsl.UnixDomainSocketSpec.$anonfun$new$20(UnixDomainSocketSpec.scala:195)
[info]   at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:85)
[info]   at org.scalatest.OutcomeOf.outcomeOf$(OutcomeOf.scala:83)
[info]   at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
[info]   at org.scalatest.Transformer.apply(Transformer.scala:22)
[info]   at org.scalatest.Transformer.apply(Transformer.scala:20)
[info]   at org.scalatest.wordspec.AnyWordSpecLike$$anon$3.apply(AnyWordSpecLike.scala:1240)
[info]   at org.apache.pekko.stream.connectors.testkit.scaladsl.LogCapturing.withFixture(LogCapturing.scala:70)
[info]   at org.apache.pekko.stream.connectors.testkit.scaladsl.LogCapturing.withFixture$(LogCapturing.scala:66)
[info]   at docs.scaladsl.UnixDomainSocketSpec.withFixture(UnixDomainSocketSpec.scala:38)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.invokeWithFixture$1(AnyWordSpecLike.scala:1238)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.$anonfun$runTest$1(AnyWordSpecLike.scala:1250)
[info]   at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.runTest(AnyWordSpecLike.scala:1250)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.runTest$(AnyWordSpecLike.scala:1232)
[info]   at docs.scaladsl.UnixDomainSocketSpec.runTest(UnixDomainSocketSpec.scala:38)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.$anonfun$runTests$1(AnyWordSpecLike.scala:1309)
[info]   at org.scalatest.SuperEngine.$anonfun$runTestsInBranch$1(Engine.scala:413)
[info]   at scala.collection.immutable.List.foreach(List.scala:431)
[info]   at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
[info]   at org.scalatest.SuperEngine.runTestsInBranch(Engine.scala:390)
[info]   at org.scalatest.SuperEngine.$anonfun$runTestsInBranch$1(Engine.scala:427)
[info]   at scala.collection.immutable.List.foreach(List.scala:431)
[info]   at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
[info]   at org.scalatest.SuperEngine.runTestsInBranch(Engine.scala:396)
[info]   at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:475)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.runTests(AnyWordSpecLike.scala:1309)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.runTests$(AnyWordSpecLike.scala:1308)
[info]   at docs.scaladsl.UnixDomainSocketSpec.runTests(UnixDomainSocketSpec.scala:38)
[info]   at org.scalatest.Suite.run(Suite.scala:1114)
[info]   at org.scalatest.Suite.run$(Suite.scala:1096)
[info]   at docs.scaladsl.UnixDomainSocketSpec.org$scalatest$wordspec$AnyWordSpecLike$$super$run(UnixDomainSocketSpec.scala:38)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.$anonfun$run$1(AnyWordSpecLike.scala:1354)
[info]   at org.scalatest.SuperEngine.runImpl(Engine.scala:535)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.run(AnyWordSpecLike.scala:1354)
[info]   at org.scalatest.wordspec.AnyWordSpecLike.run$(AnyWordSpecLike.scala:1352)
[info]   at docs.scaladsl.UnixDomainSocketSpec.org$scalatest$BeforeAndAfterAll$$super$run(UnixDomainSocketSpec.scala:38)
[info]   at org.scalatest.BeforeAndAfterAll.liftedTree1$1(BeforeAndAfterAll.scala:213)
[info]   at org.scalatest.BeforeAndAfterAll.run(BeforeAndAfterAll.scala:210)
[info]   at org.scalatest.BeforeAndAfterAll.run$(BeforeAndAfterAll.scala:208)
[info]   at docs.scaladsl.UnixDomainSocketSpec.run(UnixDomainSocketSpec.scala:38)
[info]   at org.scalatest.tools.Framework.org$scalatest$tools$Framework$$runSuite(Framework.scala:321)
[info]   at org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:517)
[info]   at sbt.TestRunner.runTest$1(TestFramework.scala:153)
[info]   at sbt.TestRunner.run(TestFramework.scala:168)
[info]   at sbt.TestFramework$$anon$3$$anonfun$$lessinit$greater$1.$anonfun$apply$1(TestFramework.scala:336)
[info]   at sbt.TestFramework$.sbt$TestFramework$$withContextLoader(TestFramework.scala:296)
[info]   at sbt.TestFramework$$anon$3$$anonfun$$lessinit$greater$1.apply(TestFramework.scala:336)
[info]   at sbt.TestFramework$$anon$3$$anonfun$$lessinit$greater$1.apply(TestFramework.scala:336)
[info]   at sbt.TestFunction.apply(TestFramework.scala:348)
[info]   at sbt.Tests$.processRunnable$1(Tests.scala:475)
[info]   at sbt.Tests$.$anonfun$makeSerial$1(Tests.scala:481)
[info]   at sbt.std.Transform$$anon$3.$anonfun$apply$2(Transform.scala:47)
[info]   at sbt.std.Transform$$anon$4.work(Transform.scala:69)
[info]   at sbt.Execute.$anonfun$submit$2(Execute.scala:283)
[info]   at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:24)
[info]   at sbt.Execute.work(Execute.scala:292)
[info]   at sbt.Execute.$anonfun$submit$1(Execute.scala:283)
[info]   at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
[info]   at sbt.CompletionService$$anon$2.call(CompletionService.scala:65)
[info]   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[info]   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[info]   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[info]   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[info]   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[info]   at java.lang.Thread.run(Thread.java:750)
[info] ScalaTest