message: BUILD: Disable parallel build
  The build agents can't handle the size of our PCH files.
diff: @@ -41,7 +41,9 @@ steps:
  configuration: '$(BuildConfiguration)'
  msbuildArgs: "${{ parameters.additionalBuildArguments }}"
  clean: true
  - maximumCpuCount: true
  + # The build agents cannot currently support parallel build due to the
  + # memory requirements of our PCH files.
  + maximumCpuCount: false
  - task: PowerShell@2
  displayName: 'Check MSIX for common regressions'
  