stage('Rustfmt') {
      steps {
        sh '''
          rustup component add rustfmt
          cargo fmt --all -- --check || true
        '''
      }
      post {
        always {
          recordIssues tools: [cargo()]
        }
      }
    } 

java.lang.ClassCastException: class java.lang.String cannot be cast to class org.json.JSONObject (java.lang.String is in module java.base of loader 'bootstrap'; org.json.JSONObject is in unnamed module of loader jenkins.util.AntClassLoader @25d46436)
	at edu.hm.hafner.analysis.parser.CargoCheckParser.lambda$parse$0(CargoCheckParser.java:75)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
	at java.base/java.util.Iterator.forEachRemaining(Unknown Source)
	at java.base/java.util.Spliterators$IteratorSpliterator.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.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.evaluate(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline.forEach(Unknown Source)
	at edu.hm.hafner.analysis.parser.CargoCheckParser.parse(CargoCheckParser.java:79)
	at io.jenkins.plugins.analysis.core.model.ReportScanningTool.scanInConsoleLog(ReportScanningTool.java:191)
	at io.jenkins.plugins.analysis.core.model.ReportScanningTool.scan(ReportScanningTool.java:138)
	at io.jenkins.plugins.analysis.core.model.ReportScanningTool.scan(ReportScanningTool.java:130)
	at io.jenkins.plugins.analysis.core.steps.IssuesScanner.scan(IssuesScanner.java:101)
	at io.jenkins.plugins.analysis.core.steps.IssuesRecorder.scanWithTool(IssuesRecorder.java:793)
	at io.jenkins.plugins.analysis.core.steps.IssuesRecorder.record(IssuesRecorder.java:757)
	at io.jenkins.plugins.analysis.core.steps.IssuesRecorder.perform(IssuesRecorder.java:726)
	at io.jenkins.plugins.analysis.core.steps.RecordIssuesStep$Execution.run(RecordIssuesStep.java:1139)
	at io.jenkins.plugins.analysis.core.steps.RecordIssuesStep$Execution.run(RecordIssuesStep.java:1097)
	at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)