{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"injected_panic_runtime:"}]}
    injected_panic_runtime: Option<CrateNum>,
    metas: IndexVec<CrateNum, Option<Box<CrateMetadata>>>,
    /// This crate needs an allocator and either provides it itself, or finds it in a dependency.