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-rw-r--r--library/coretests/tests/lib.rs1
1 files changed, 0 insertions, 1 deletions
diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs
index 7fe72862608..f1bbed3de30 100644
--- a/library/coretests/tests/lib.rs
+++ b/library/coretests/tests/lib.rs
@@ -81,7 +81,6 @@
 #![feature(strict_provenance_atomic_ptr)]
 #![feature(strict_provenance_lints)]
 #![feature(test)]
-#![feature(trait_upcasting)]
 #![feature(trusted_len)]
 #![feature(trusted_random_access)]
 #![feature(try_blocks)]