syntax_data: {"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"crate_type:"}]}
source_snippet:                 crate_type: *crate_type,
context_before:             session.dcx().emit_warn(errors::UnsupportedCrateTypeForTarget {
context_after:                 target_triple: &session.opts.target_triple,