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-rw-r--r--src/libsyntax/lib.rs2
1 files changed, 0 insertions, 2 deletions
diff --git a/src/libsyntax/lib.rs b/src/libsyntax/lib.rs
index ee7fb97ffd7..591f2fb599b 100644
--- a/src/libsyntax/lib.rs
+++ b/src/libsyntax/lib.rs
@@ -18,9 +18,7 @@
 #![feature(label_break_value)]
 #![feature(mem_take)]
 #![feature(nll)]
-#![feature(rustc_attrs)]
 #![feature(rustc_diagnostic_macros)]
-#![feature(step_trait)]
 #![feature(try_trait)]
 #![feature(unicode_internals)]