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-rw-r--r--src/librustc_driver/lib.rs1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/librustc_driver/lib.rs b/src/librustc_driver/lib.rs
index c139be07aa1..66739761ef0 100644
--- a/src/librustc_driver/lib.rs
+++ b/src/librustc_driver/lib.rs
@@ -16,7 +16,6 @@
 
 #![recursion_limit="256"]
 
-#![deny(rust_2018_idioms)]
 #![deny(unused_lifetimes)]
 
 pub extern crate getopts;