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-rw-r--r--src/libproc_macro/lib.rs2
1 files changed, 0 insertions, 2 deletions
diff --git a/src/libproc_macro/lib.rs b/src/libproc_macro/lib.rs
index 2c097238b95..c0f7714ca21 100644
--- a/src/libproc_macro/lib.rs
+++ b/src/libproc_macro/lib.rs
@@ -17,8 +17,6 @@
        test(no_crate_inject, attr(deny(warnings))),
        test(attr(allow(dead_code, deprecated, unused_variables, unused_mut))))]
 
-#![deny(rust_2018_idioms)]
-
 #![feature(nll)]
 #![feature(staged_api)]
 #![feature(const_fn)]