Silence warning for `USECS_PER_SEC`
@@ -15,6 +15,7 @@ use serde::Deserialize;
use std::convert::TryFrom;
use std::ffi::CStr;
+#[allow(dead_code)] // such is cfg life
pub(crate) const USECS_PER_SEC: i64 = 1_000_000;
#[cfg(feature = "time-crate")]
