Filter warnings about tail unrecognized file system from test logs
diff --git a/localstack/utils/testutil.py b/localstack/utils/testutil.py
index cf32d468fb10a..8ff69114b2d73 100644
--- a/localstack/utils/testutil.py
+++ b/localstack/utils/testutil.py
@@ -605,6 +605,9 @@ def get_log_events(function_name, delay_time):
             or "START" in raw_message
             or "END" in raw_message
             or "REPORT" in raw_message
+            # necessary until tail is updated in docker images. See this PR:
+            # http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commitdiff;h=v8.24-111-g1118f32
+            or "tail: unrecognized file system type" in raw_message
             or regex_filter
             and not re.search(regex_filter, raw_message)
         ):

Due to the bug fixed by this PR http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commitdiff;h=v8.24-111-g1118f32

this log message can appear if tail is executed in the context of lambda execution.

This PR filters that message, until we can update the tail command in the lambda docker images.