Function scan_all_distributions 

pub fn scan_all_distributions(
    http_client: &Client,
    rules: &Rules,
    job: &Job,
    reuse: Option<&ReuseCache>,
    stats: &mut CacheStats,
) -> Result<Vec<DistributionScanResults>>

Scan all the distributions of the given job against the given ruleset

Uses the provided HTTP client to download each distribution.