syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"\"argument"}]}
source_snippet:                     "argument for `--error-format` must be `human`, `human-annotate-rs`, \
context_before:                 early_dcx.early_fatal(format!(
context_after:                     `human-unicode`, `json`, `pretty-json` or `short` (instead was `{arg}`)"