syntax_data: {"ast_node_type":"variable","tokens":[{"end":78,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                             let cause = if let Conflict::Upstream = conflict {
context_before:                             let self_ty = self_ty.has_concrete_skeleton().then(|| self_ty);
context_after:                                 IntercrateAmbiguityCause::UpstreamCrateUpdate { trait_ref, self_ty }