1 #[cfg(debug_assertions)] 2 build_alert::yellow! {" 3 NOTE: use --release 4 Syn's test suite has some tests that run on every source file 5 and test case in the rust-lang/rust repo, which can be pretty 6 slow in debug mode. Consider running cargo test with `--release` 7 to speed things up. 8 "} 9 10 #[cfg(not(feature = "all-features"))] 11 build_alert::red! {" 12 ERROR: use --all-features 13 Syn's test suite normally only works with all-features enabled. 14 Run again with `--all-features`, or run with `--features test` 15 to bypass this check. 16 "} 17