fn summary_for_patch(
orig_patch: &Dependency,
locked: &Option<LockedPatchDependency>,
summaries: Vec<Summary>,
source: &mut dyn Source,
) -> Poll<CargoResult<(Summary, Option<PackageId>)>>Expand description
A helper for selecting the summary, or generating a helpful error message.
Returns a tuple that the first element is the summary selected. The second
is a package ID indicating that the patch entry should be unlocked. This
happens when a match cannot be found with the locked one, but found one
via the original patch, so we need to inform the resolver to “unlock” it.