Don't mutate the inference context when assembling

2016-05-11 14:56:52 -07:00 · 2016-05-11 14:56:52 -07:00 · ec7c483d67
commit ec7c483d67
parent 8628ccec8f
1 changed files with 1 additions and 1 deletions
--- a/src/librustc/traits/select.rs
+++ b/src/librustc/traits/select.rs
@ -1463,7 +1463,7 @@ impl<'cx, 'gcx, 'tcx> SelectionContext<'cx, 'gcx, 'tcx> {
            return;
        }

-        self.infcx.in_snapshot(|snapshot| {
+        self.infcx.probe(|snapshot| {
            let (self_ty, _) =
                self.infcx().skolemize_late_bound_regions(&obligation.self_ty(), snapshot);
            let poly_trait_ref = match self_ty.sty {