syntax_data: {"ast_node_type":"other","tokens":[{"end":112,"kind":"keyword","start":0,"text":"\"treat"}]}
source_snippet:         "treat the `val`th error that occurs as bug (default if not specified: 0 - don't treat errors as bugs. \
context_before:     treat_err_as_bug: Option<NonZero<usize>> = (None, parse_treat_err_as_bug, [TRACKED],
context_after:         default if specified without a value: 1 - treat the first error as bug)"),