diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/librustc/middle/stability.rs | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/librustc/middle/stability.rs b/src/librustc/middle/stability.rs index 30a43c7a925..b93164c1f67 100644 --- a/src/librustc/middle/stability.rs +++ b/src/librustc/middle/stability.rs @@ -403,10 +403,14 @@ impl<'a, 'tcx> Index<'tcx> { active_features: Default::default(), }; - let ref active_lib_features = tcx.features().declared_lib_features; - - // Put the active features into a map for quick lookup - index.active_features = active_lib_features.iter().map(|&(ref s, _)| s.clone()).collect(); + let active_lib_features = &tcx.features().declared_lib_features; + let active_lang_features = &tcx.features().declared_lang_features; + + // Put the active features into a map for quick lookup. + index.active_features = + active_lib_features.iter().map(|&(ref s, ..)| s.clone()) + .chain(active_lang_features.iter().map(|&(ref s, ..)| s.clone())) + .collect(); { let krate = tcx.hir().krate(); |