uploadOK = false
	}
	// TODO(rfindley): check that all the x.Meta are consistent for GOOS, GOARCH, etc.
	report := &telemetry.Report{
		Config:   u.configVersion,
		X:        computeRandom(), // json encodes all the bits
		Week:     expiryDate,
		LastWeek: lastWeek,
	}
	if report.X > u.config.SampleRate && u.config.SampleRate > 0 {