From 522ebca7d1ea2fc646bb40002352126ee4a6d89e Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Mon, 31 Jul 2017 10:56:19 +0300
Subject: [PATCH] Revert and close #2689

This reverts commit 881f6d0290bdd57fdf8c3710d3a764d654eff1da.
---
 build-constraints.yaml | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1d222fbc..4953eb8f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3840,9 +3840,6 @@ expected-test-failures:
     # https://github.com/pruvisto/heap/issues/4
     - heap
 
-    # https://github.com/fpco/stackage/issues/2689
-    - non-negative
-
     # https://github.com/adamgundry/units-parser/issues/1
     - units-parser