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-rw-r--r--src/librustc_data_structures/graph/implementation/mod.rs1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/librustc_data_structures/graph/implementation/mod.rs b/src/librustc_data_structures/graph/implementation/mod.rs
index f705c2f0b75..1aa7ac024d9 100644
--- a/src/librustc_data_structures/graph/implementation/mod.rs
+++ b/src/librustc_data_structures/graph/implementation/mod.rs
@@ -23,7 +23,6 @@
 use crate::snapshot_vec::{SnapshotVec, SnapshotVecDelegate};
 use rustc_index::bit_set::BitSet;
 use std::fmt::Debug;
-use std::usize;
 
 #[cfg(test)]
 mod tests;