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-rw-r--r--src/librustdoc/formats/cache.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustdoc/formats/cache.rs b/src/librustdoc/formats/cache.rs
index 90942d87f72..c5e2b33ccf8 100644
--- a/src/librustdoc/formats/cache.rs
+++ b/src/librustdoc/formats/cache.rs
@@ -4,6 +4,7 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexSet};
 use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, DefIdSet};
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_span::Symbol;
+use tracing::debug;
 
 use crate::clean::types::ExternalLocation;
 use crate::clean::{self, ExternalCrate, ItemId, PrimitiveType};