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-rw-r--r--src/librustc_incremental/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustc_incremental/lib.rs b/src/librustc_incremental/lib.rs
index 5eaf8553ee3..0b827a0ee98 100644
--- a/src/librustc_incremental/lib.rs
+++ b/src/librustc_incremental/lib.rs
@@ -16,6 +16,7 @@
 #![deny(warnings)]
 
 #![feature(conservative_impl_trait)]
+#![feature(fs_read_write)]
 #![feature(i128_type)]
 #![feature(inclusive_range_syntax)]
 #![feature(specialization)]