X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=compiler%2Frustc_builtin_macros%2Fsrc%2Flib.rs;h=280fa70451141f85f821c2f2b02e0f87f82d5a83;hb=18d3063350809de08f98fb74479a28d7149a3d14;hp=11565ba72d7555f1fb157468fd4c83b957eb873e;hpb=aa857eb953e2395da0d10ad144df4ace9c732f56;p=rust.git

diff --git a/compiler/rustc_builtin_macros/src/lib.rs b/compiler/rustc_builtin_macros/src/lib.rs
index 11565ba72d7..280fa704511 100644
--- a/compiler/rustc_builtin_macros/src/lib.rs
+++ b/compiler/rustc_builtin_macros/src/lib.rs
@@ -16,6 +16,9 @@
 
 extern crate proc_macro;
 
+#[macro_use]
+extern crate tracing;
+
 use crate::deriving::*;
 
 use rustc_expand::base::{MacroExpanderFn, ResolverExpand, SyntaxExtensionKind};