diff options
Diffstat (limited to 'src/libsyntax/lib.rs')
| -rw-r--r-- | src/libsyntax/lib.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/lib.rs b/src/libsyntax/lib.rs index 118ceb17ab4..6e671c9efdc 100644 --- a/src/libsyntax/lib.rs +++ b/src/libsyntax/lib.rs @@ -31,7 +31,7 @@ #![feature(staged_api)] #![feature(str_escape)] #![feature(unicode)] -#![feature(question_mark)] +#![cfg_attr(stage0, feature(question_mark))] #![feature(rustc_diagnostic_macros)] #![feature(specialization)] |