Stabilise ?

cc [`?` tracking issue](rust-lang/rust#31436)
spikespaz · Oct 11, 2016 · 2439bbe · 2439bbe
1 parent 0022e65
commit 2439bbe
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib.rs b/lib.rs
@@ -295,7 +295,7 @@
 #![cfg_attr(not(stage0), deny(warnings))]
 
 #![feature(str_escape)]
-#![feature(question_mark)]
+#![cfg_attr(stage0, feature(question_mark))]
 
 use self::LabelText::*;