syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:         /// (the `rust.remap-debuginfo` option in `bootstrap.toml`).
context_before:         /// if Rust was built with path remapping to `/rustc/$hash` enabled
context_after:         real_rustc_dev_source_base_dir: Option<PathBuf> [TRACKED_NO_CRATE_HASH],