message: Update to rustc 1.19.0-nightly (777ee2079 2017-05-01)
diff: @@ -248,7 +248,7 @@ impl<'a, 'b, 'tcx> Visitor<'tcx> for ConstantExtractor<'a, 'b, 'tcx> {
  bug!("static def id doesn't point to item");
  }
  } else {
  - let def = self.ecx.tcx.sess.cstore.describe_def(def_id).expect("static not found");
  + let def = self.ecx.tcx.describe_def(def_id).expect("static not found");
  if let hir::def::Def::Static(_, mutable) = def {
  self.global_item(def_id, substs, span, !mutable);
  } else {
  