{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"&format!(\"-Zcodegen-backend={}/target/debug/librustc_codegen_gcc.so\","}]}
                &format!("-Zcodegen-backend={}/target/debug/librustc_codegen_gcc.so", current_dir),
            compiler.args([
                "--sysroot",