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-rw-r--r--compiler/rustc_trait_selection/src/traits/util.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_trait_selection/src/traits/util.rs b/compiler/rustc_trait_selection/src/traits/util.rs
index 279f13896f4..0689b880f33 100644
--- a/compiler/rustc_trait_selection/src/traits/util.rs
+++ b/compiler/rustc_trait_selection/src/traits/util.rs
@@ -12,6 +12,7 @@ use rustc_middle::ty::{
 };
 use rustc_span::Span;
 use smallvec::{smallvec, SmallVec};
+use tracing::debug;
 
 use super::{NormalizeExt, ObligationCause, PredicateObligation, SelectionContext};