Unit test mutex death

1 files changed, 3 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 06ed70e..4930fb4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,5 +21,8 @@ spin = { version = "0.9", optional = true }
 
 mutants = "0.0.3"  # used to skip functions that can't run
 
+[dev-dependencies]
+parking_lot = "0.12"
+
 [features]
 default = ["parking_lot"]