syntax_data: {"ast_node_type":"other","tokens":[{"end":32,"kind":"keyword","start":0,"text":"|"}]}
source_snippet:             | ty::Array(..) => {
context_before:             | ty::Ref(_, _, hir::Mutability::Not)
context_after:                 unreachable!("tried to assemble `Sized` for type with libcore-provided impl")