syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// When this is the case, we do *not* want to cache the resulting selection
context_before:     /// a `ParamEnv` may be explicitly constructed with inference types.
context_after:     /// candidate. This is due to the fact that it might not always be possible