abstract class IncubatingApiReportAggregationWorkAction : WorkAction<IncubatingApiReportAggregationParameter> {
    override fun execute() {
        val byCategory = mutableMapOf<String, ReportNameToProblems>()
        parameters.reports.files.sorted().forEach { file ->
            file.forEachLine(Charsets.UTF_8) {
                val (version, _, problem) = it.split(';')
                byCategory.getOrPut(toCategory(version, file.nameWithoutExtension)) {