do not ignore stderr in binary format check tests

1 files changed, 3 insertions, 3 deletions

diff --git a/check.py b/check.py
index 025fc60e9..d405cd287 100755
--- a/check.py
+++ b/check.py
@@ -212,19 +212,19 @@ def binary_format_check(wast, verify_final_result=True):
   cmd = [os.path.join('bin', 'wasm-as'), wast, '-o', 'a.wasm']
   print '      ', ' '.join(cmd)
   if os.path.exists('a.wasm'): os.unlink('a.wasm')
-  subprocess.check_call(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+  subprocess.check_call(cmd, stdout=subprocess.PIPE)
   assert os.path.exists('a.wasm')
 
   cmd = [os.path.join('bin', 'wasm-dis'), 'a.wasm', '-o', 'ab.wast']
   print '      ', ' '.join(cmd)
   if os.path.exists('ab.wast'): os.unlink('ab.wast')
-  subprocess.check_call(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+  subprocess.check_call(cmd, stdout=subprocess.PIPE)
   assert os.path.exists('ab.wast')
 
   # make sure it is a valid wast
   cmd = [os.path.join('bin', 'binaryen-shell'), 'ab.wast']
   print '      ', ' '.join(cmd)
-  subprocess.check_call(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+  subprocess.check_call(cmd, stdout=subprocess.PIPE)
 
   if verify_final_result:
     expected = open(wast + '.fromBinary').read()