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Diffstat (limited to 'src/libproc_macro')
| -rw-r--r-- | src/libproc_macro/lib.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libproc_macro/lib.rs b/src/libproc_macro/lib.rs index 8f16e3c08ec..a975ce93bb1 100644 --- a/src/libproc_macro/lib.rs +++ b/src/libproc_macro/lib.rs @@ -24,6 +24,7 @@ #![feature(decl_macro)] #![feature(extern_types)] #![feature(in_band_lifetimes)] +#![cfg_attr(not(bootstrap), feature(negative_impls))] #![feature(optin_builtin_traits)] #![feature(rustc_attrs)] #![cfg_attr(bootstrap, feature(specialization))] |