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-rw-r--r--library/std/src/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index c457c39e0c1..dc5a8704498 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -328,6 +328,7 @@
 #![feature(float_gamma)]
 #![feature(float_minimum_maximum)]
 #![feature(float_next_up_down)]
+#![feature(fmt_internals)]
 #![feature(generic_nonzero)]
 #![feature(hasher_prefixfree_extras)]
 #![feature(hashmap_internals)]