From 603891ab075d60993a7089a9f2b121a7b5a4e28d Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Tue, 2 Feb 2016 09:58:42 +0200
Subject: [PATCH] Expect test failure ekmett/lens#634

---
 build-constraints.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1651990d..9aa85cb0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2456,6 +2456,9 @@ expected-test-failures:
     # openfile: does not exist
     - skein
 
+    # https://github.com/ekmett/lens/issues/634
+    - lens
+
 # end of expected-test-failures