Function try_populate_cache 

pub fn try_populate_cache(
    source: &Utf8Path,
    cache_dir: &Utf8Path,
    version: &str,
)

Attempts to populate the cache after a download, logging warnings on failure.

This is a convenience wrapper that does not propagate errors, allowing the main flow to continue even if caching fails.

Arguments

• source - Directory containing freshly downloaded binaries
• cache_dir - Root directory of the binary cache
• version - Version string for the cache entry