syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // A provisional cache entry is applicable if the path to
context_before:             debug!(?input, ?path_from_global_entry, ?entries, "candidate_is_applicable");
context_after:             // its highest cycle head is equal to the expected path.