syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"linker:"}]}
source_snippet:     linker: Option<PathBuf> = (None, parse_opt_pathbuf, [UNTRACKED],
context_before:         on a C toolchain or linker installed in the system"),
context_after:         "system linker to link outputs with"),