Nightly Dotty workflow of 2021-07-31 failed

[github-actions]

See https://github.com/lampepfl/dotty/actions/runs/1084229859

[dwijnand]

java.io.IOException: Failed to retrieve data from /staging/profile_repositories: HTTP/1.1 401 Unauthorized
	at xerial.sbt.NexusRESTService.$anonfun$Get$1(NexusClient.scala:108)
	at xerial.sbt.NexusRESTService.$anonfun$Get$1$adapted(NexusClient.scala:97)
	at xerial.sbt.NexusRESTService.withHttpClient(NexusClient.scala:170)
	at xerial.sbt.NexusRESTService.Get(NexusClient.scala:97)
	at xerial.sbt.NexusRESTService.stagingRepositoryProfiles(NexusClient.scala:244)
	at xerial.sbt.NexusRESTService.findStagingRepositoryProfilesWithKey(NexusClient.scala:237)
	at xerial.sbt.NexusRESTService.dropIfExistsByKey(NexusClient.scala:224)
	at xerial.sbt.Sonatype$.$anonfun$prepare$2(Sonatype.scala:135)
	at scala.concurrent.Future$.$anonfun$apply$1(Future.scala:659)
	at scala.util.Success.$anonfun$map$1(Try.scala:255)
	at scala.util.Success.map(Try.scala:213)
	at scala.concurrent.Future.$anonfun$map$1(Future.scala:292)
	at scala.concurrent.impl.Promise.liftedTree1$1(Promise.scala:33)
	at scala.concurrent.impl.Promise.$anonfun$transform$1(Promise.scala:33)
	at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:64)
	at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175)
Error:  java.io.IOException: Failed to retrieve data from /staging/profile_repositories: HTTP/1.1 401 Unauthorized
Error:  Use 'last' for the full log.
Error: Process completed with exit code 1.

which I assume is spurious? Otherwise this is the ongoing issue.

[dwijnand]

Duplicate of #13176