1 // rustc-cfg emitted by the build script:
5 //     Enabled on rustc 1.29+ as long as procmacro2_semver_exempt is not set,
54         println!("cargo:rustc-cfg=procmacro2_semver_exempt");  in main()
58         println!("cargo:rustc-cfg=span_locations");  in main()
62         println!("cargo:rustc-cfg=no_is_available");  in main()
66         println!("cargo:rustc-cfg=no_source_text");  in main()
74         println!("cargo:rustc-cfg=wrap_proc_macro");  in main()
78         println!("cargo:rustc-cfg=proc_macro_span");  in main()
82         println!("cargo:rustc-cfg=super_unstable");  in main()
92     let rustc = env::var_os("RUSTC")?;  in rustc_version()  localVariable
93     let output = Command::new(rustc).arg("--version").output().ok()?;  in rustc_version()
97     if pieces.next() != Some("rustc 1") {  in rustc_version()