FATAL: bazel crashed due to an internal error. Printing stack trace:
java.lang.RuntimeException: Unrecoverable error while evaluating node 'ConfiguredTargetKey{label=//dotnet/private/tests/warning_settings:csharp_treat_warnings_as_errors_config_test, config=BuildConfigurationKey[0cfe0dbd956d9b571c331623c346c60b3b866c9f5bcd256de36fa22c2b46c2b8]}' (requested by nodes )
	at com.google.devtools.build.skyframe.AbstractParallelEvaluator$Evaluate.run(AbstractParallelEvaluator.java:633)
	at com.google.devtools.build.lib.concurrent.AbstractQueueVisitor$WrappedRunnable.run(AbstractQueueVisitor.java:365)
	at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinPool.scan(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)
Caused by: java.lang.IllegalArgumentException: com.google.devtools.build.lib.cmdline.LabelSyntaxException: invalid repository name '@[unknown repo '' requested from @bazel_skylib~1.4.2]': repo names may contain only A-Z, a-z, 0-9, '-', '_', '.' and '~' and must not start with '~'
	at com.google.devtools.build.lib.cmdline.Label.parseAbsoluteUnchecked(Label.java:240)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
	at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.copyInto(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.evaluate(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline.collect(Unknown Source)
	at com.google.devtools.build.lib.analysis.starlark.StarlarkTransition.getRelevantStarlarkSettingsFromTransition(StarlarkTransition.java:393)
	at com.google.devtools.build.lib.analysis.starlark.StarlarkTransition.lambda$getAllStarlarkBuildSettings$0(StarlarkTransition.java:123)
	at com.google.devtools.build.lib.analysis.starlark.StarlarkTransition$StarlarkTransitionVisitor.accept(StarlarkTransition.java:430)
	at com.google.devtools.build.lib.analysis.config.transitions.ConfigurationTransition.visit(ConfigurationTransition.java:101)
	at com.google.devtools.build.lib.analysis.config.transitions.ComposingTransition.visit(ComposingTransition.java:99)
	at com.google.devtools.build.lib.analysis.config.transitions.ComposingTransition.visit(ComposingTransition.java:99)
	at com.google.devtools.build.lib.analysis.starlark.StarlarkTransition.getAllStarlarkBuildSettings(StarlarkTransition.java:119)
	at com.google.devtools.build.lib.analysis.config.ConfigurationResolver.getStarlarkBuildSettingsDetailsValue(ConfigurationResolver.java:407)
	at com.google.devtools.build.lib.analysis.config.ConfigurationResolver.applyTransitionWithSkyframe(ConfigurationResolver.java:388)
	at com.google.devtools.build.lib.analysis.config.ConfigurationResolver.resolveGenericTransition(ConfigurationResolver.java:233)
	at com.google.devtools.build.lib.analysis.config.ConfigurationResolver.resolveConfiguration(ConfigurationResolver.java:192)
	at com.google.devtools.build.lib.analysis.config.ConfigurationResolver.resolveConfigurations(ConfigurationResolver.java:151)
	at com.google.devtools.build.lib.skyframe.ConfiguredTargetFunction.computeDependencies(ConfiguredTargetFunction.java:869)
	at com.google.devtools.build.lib.skyframe.ConfiguredTargetFunction.compute(ConfiguredTargetFunction.java:371)
	at com.google.devtools.build.skyframe.AbstractParallelEvaluator$Evaluate.run(AbstractParallelEvaluator.java:562)
	... 7 more
Caused by: com.google.devtools.build.lib.cmdline.LabelSyntaxException: invalid repository name '@[unknown repo '' requested from @bazel_skylib~1.4.2]': repo names may contain only A-Z, a-z, 0-9, '-', '_', '.' and '~' and must not start with '~'
	at com.google.devtools.build.lib.cmdline.LabelParser.syntaxErrorf(LabelParser.java:208)
	at com.google.devtools.build.lib.cmdline.RepositoryName.validate(RepositoryName.java:160)
	at com.google.devtools.build.lib.cmdline.LabelParser$Parts.validateRepoName(LabelParser.java:180)
	at com.google.devtools.build.lib.cmdline.LabelParser$Parts.validateAndCreate(LabelParser.java:72)
	at com.google.devtools.build.lib.cmdline.LabelParser$Parts.parse(LabelParser.java:164)
	at com.google.devtools.build.lib.cmdline.Label.parseCanonical(Label.java:123)
	at com.google.devtools.build.lib.cmdline.Label.parseAbsoluteUnchecked(Label.java:238)
	... 30 more