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-rw-r--r--src/librustc_data_structures/Cargo.toml1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/librustc_data_structures/Cargo.toml b/src/librustc_data_structures/Cargo.toml
index 10820007629..79f073d643d 100644
--- a/src/librustc_data_structures/Cargo.toml
+++ b/src/librustc_data_structures/Cargo.toml
@@ -16,7 +16,6 @@ serialize = { path = "../libserialize" }
 graphviz = { path = "../libgraphviz" }
 cfg-if = "0.1.2"
 stable_deref_trait = "1.0.0"
-parking_lot_core = "0.2.8"
 rustc-rayon = "0.1.1"
 rustc-rayon-core = "0.1.1"
 rustc-hash = "1.0.1"