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-rw-r--r--compiler/rustc_traits/src/codegen.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_traits/src/codegen.rs b/compiler/rustc_traits/src/codegen.rs
index 49e101b51e6..51f38964415 100644
--- a/compiler/rustc_traits/src/codegen.rs
+++ b/compiler/rustc_traits/src/codegen.rs
@@ -13,6 +13,7 @@ use rustc_trait_selection::traits::{
     ImplSource, Obligation, ObligationCause, SelectionContext, TraitEngine, TraitEngineExt,
     Unimplemented,
 };
+use tracing::debug;
 
 /// Attempts to resolve an obligation to an `ImplSource`. The result is
 /// a shallow `ImplSource` resolution, meaning that we do not