Add a `#[macro_use]` on the `alloc` import for `format!()`

diff --git a/lightning/src/lib.rs b/lightning/src/lib.rs
index 14445710655b277f32eaeb1033a475b3b3c53c9e..5c414b7b233caa0c86aec510b548f993214c7e0b 100644 (file)
--- a/lightning/src/lib.rs
+++ b/lightning/src/lib.rs
@@ -31,6 +31,7 @@
 #![cfg_attr(all(any(test, feature = "_test_utils"), feature = "unstable"), feature(test))]
 #[cfg(all(any(test, feature = "_test_utils"), feature = "unstable"))] extern crate test;
 
+#[macro_use]
 extern crate alloc;
 extern crate bitcoin;
 extern crate core;