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-rw-r--r--compiler/rustc_lint/src/levels.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_lint/src/levels.rs b/compiler/rustc_lint/src/levels.rs
index 12b3d1d2f9e..98e321076c5 100644
--- a/compiler/rustc_lint/src/levels.rs
+++ b/compiler/rustc_lint/src/levels.rs
@@ -41,6 +41,7 @@ use rustc_session::parse::feature_err;
 use rustc_session::Session;
 use rustc_span::symbol::{sym, Symbol};
 use rustc_span::{Span, DUMMY_SP};
+use tracing::{debug, instrument};
 
 use crate::errors::{
     MalformedAttribute, MalformedAttributeSub, OverruledAttribute, OverruledAttributeSub,