:app:transformNativeLibsWithStripDebugSymbolForDevelopmentDebug FAILED FAILURE: Build failed with an exception. What went wrong: Execution failed for task ':app:transformNativeLibsWithStripDebugSymbolForDevelopmentDebug'. > A problem occurred starting process 'command '/opt/android-ndk/toolchains/mips64el-linux-android-4.9/prebuilt/linux-x86_64/bin/mips64el-linux-android-strip'' Try: Run with --info or --debug option to get more log output. Exception is: org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:transformNativeLibsWithStripDebugSymbolForDevelopmentDebug'.
というメッセージでコケた場合、ndkを削除する必要がある*1
ワークフローの「Script step」に「rm -rf /opt/android-ndk」を追加すると解決する