const COW: Cow<str> = Cow::Borrowed("abcdef");
//^ note: a const item of Cow is used in the `postgres` package.
-const NO_ANN: &Display = &70;
+const NO_ANN: &dyn Display = &70;
static STATIC_TUPLE: (AtomicUsize, String) = (ATOMIC, STRING);
//^ there should be no lints on this line