Rollup merge of #83571 - a1phyr:feature_const_slice_first_last, r=dtolnay

[rust.git] / library / core / Cargo.toml

diff --git a/library/core/Cargo.toml b/library/core/Cargo.toml
index 4a7dbb91822e2baee545034e00981f965bac7046..b6aaf078cf00d6ad140fa5add446d838cf3a4f59 100644 (file)
--- a/library/core/Cargo.toml
+++ b/library/core/Cargo.toml
@@ -28,3 +28,6 @@ rand = "0.7"
 [features]
 # Make panics and failed asserts immediately abort without formatting any message
 panic_immediate_abort = []
+# Make `RefCell` store additional debugging information, which is printed out when
+# a borrow error occurs
+debug_refcell = []