#[unstable(feature = "try_reserve", reason = "new API", issue = "48043")]
impl Error for alloc::collections::TryReserveError {}
+#[unstable(feature = "duration_checked_float", issue = "83400")]
+impl Error for core::time::FromSecsError {}
+
// Copied from `any.rs`.
impl dyn Error + 'static {
/// Returns `true` if the boxed type is the same as `T`