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-rw-r--r--compiler/rustc_middle/src/ty/assoc.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_middle/src/ty/assoc.rs b/compiler/rustc_middle/src/ty/assoc.rs
index 94a5ff13158..1cdde3f057c 100644
--- a/compiler/rustc_middle/src/ty/assoc.rs
+++ b/compiler/rustc_middle/src/ty/assoc.rs
@@ -3,6 +3,7 @@ use rustc_data_structures::sorted_map::SortedIndexMultiMap;
 use rustc_hir as hir;
 use rustc_hir::def::{DefKind, Namespace};
 use rustc_hir::def_id::DefId;
+use rustc_macros::{Decodable, Encodable, HashStable};
 use rustc_span::symbol::{Ident, Symbol};
 
 use super::{TyCtxt, Visibility};