Fix regex according to current error messages, but allow old form too

iib/workers/tasks/utils.py

@@ -716,6 +716,8 @@ def _regex_reverse_search(
     :return: the regex match or None if not matched
     :rtype: re.Match
     """
+    print(f"regex: {regex}")
+    print(f"proc_response: {proc_response.stderr.splitlines()}")
     # Start from the last log message since the failure occurs near the bottom
     for msg in reversed(proc_response.stderr.splitlines()):
         match = re.match(regex, msg)
@@ -766,10 +768,16 @@ def run_cmd(
                 raise IIBError(f'{exc_msg.rstrip(".")}: {match.groups()[0]}')
         elif cmd[0] == 'buildah':
             # Check for HTTP 50X errors on buildah
-            regex = r'.*(error creating build container).*((?:50[0-9]|125)\s.*$)'
-            match = _regex_reverse_search(regex, response)
-            if match:
-                raise ExternalServiceError(f'{exc_msg}: {": ".join(match.groups()).strip()}')
+            network_regexes = [
+                r'.*([e,E]rror:? creating build container).*(:?(50[0-9]|125)\s.*$)',
+                r'.* read\/write on closed pipe.*',
+            ]
+            for regex in network_regexes:
+                match = _regex_reverse_search(regex, response)
+                if match:
+                    print(match.groups())
+                if match:
+                    raise ExternalServiceError(f'{exc_msg}: {": ".join(match.groups()).strip()}')
 
         raise IIBError(exc_msg)