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-rw-r--r--src/libcore/fmt/num.rs1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/libcore/fmt/num.rs b/src/libcore/fmt/num.rs
index 56d2eabc095..49da99b97cb 100644
--- a/src/libcore/fmt/num.rs
+++ b/src/libcore/fmt/num.rs
@@ -13,7 +13,6 @@
 // FIXME: #6220 Implement floating point formatting
 
 #![allow(unsigned_negation)]
-#![allow(trivial_numeric_casts)]
 
 use fmt;
 use iter::IteratorExt;