syntax_data: {"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"is_nightly_build(matches.opt_str(\"crate-name\").as_deref())"}]}
source_snippet:         is_nightly_build(matches.opt_str("crate-name").as_deref())
context_before:     pub fn match_is_nightly_build(matches: &getopts::Matches) -> bool {
context_after:     }