syntax_data: {"ast_node_type":"other","tokens":[{"end":19,"kind":"keyword","start":0,"text":"Err(e)"}]}
source_snippet:         Err(e) => {
context_before:         Err(SelectionError::Unimplemented) => return Err(CodegenObligationError::Unimplemented),
context_after:             bug!("Encountered error `{:?}` selecting `{:?}` during codegen", e, trait_ref)