Detected 5 new flakes for test/step "Recipe". To see the actual flakes, please visit https://chromium-try-flakes.appspot.com/all_flake_occurrences?key=ahVzfmNocm9taXVtLXRyeS1mbGFrZXNyEQsSBUZsYWtlIgZSZWNpcGUM. This message was posted automatically by the chromium-try-flakes app. Since flakiness is ongoing, the issue was moved back into Sheriff Bug Queue (unless already there).

Detected 12 new flakes for test/step "Recipe". To see the actual flakes, please visit https://chromium-try-flakes.appspot.com/all_flake_occurrences?key=ahVzfmNocm9taXVtLXRyeS1mbGFrZXNyEQsSBUZsYWtlIgZSZWNpcGUM. This message was posted automatically by the chromium-try-flakes app. Since flakiness is ongoing, the issue was moved back into Sheriff Bug Queue (unless already there).

It looks all bots are now green. Let's close this tentatively, and see whether this will happen again or not.

It is still flaky. Let me reopen this.

 Issue 610183  has been merged into this issue.

As per https://bugs.chromium.org/p/chromium/issues/detail?id=597864,
let me assign this to sergiyb@.

Detected 58 new flakes for test/step "Recipe". To see the actual flakes, please visit https://chromium-try-flakes.appspot.com/all_flake_occurrences?key=ahVzfmNocm9taXVtLXRyeS1mbGFrZXNyEQsSBUZsYWtlIgZSZWNpcGUM. This message was posted automatically by the chromium-try-flakes app. Since flakiness is ongoing, the issue was moved back into Sheriff Bug Queue (unless already there).

Detected 34 new flakes for test/step "archive_webkit_tests_results". To see the actual flakes, please visit https://chromium-try-flakes.appspot.com/all_flake_occurrences?key=ahVzfmNocm9taXVtLXRyeS1mbGFrZXNyJwsSBUZsYWtlIhxhcmNoaXZlX3dlYmtpdF90ZXN0c19yZXN1bHRzDA. This message was posted automatically by the chromium-try-flakes app. Since flakiness is ongoing, the issue was moved back into Sheriff Bug Queue (unless already there).

It looks like the actual python exception has changed (the location is roughly the same, but the exception is different.

Previously, I was seeing

Traceback (most recent call last):
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/util.py", line 154, in raises
    yield
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/run.py", line 370, in run_step
    step_result = open_step.run()
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/step_runner.py", line 217, in run
    cmd=cmd, handles=handles, env=step_env, cwd=step_dict.get('cwd'))
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/step_runner.py", line 388, in _run_cmd
    for pipe, data in proc.yield_any(timeout=1):
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/subprocess42.py", line 413, in yield_any
    maxsize=maxsize() if callable(maxsize) else maxsize, timeout=to)
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/subprocess42.py", line 465, in recv_any
    index, data, closed = recv_multi_impl(conns, maxsize, timeout)
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/subprocess42.py", line 171, in recv_multi_impl
    data = conn.read(maxsize)
IOError: [Errno 11] Resource temporarily unavailable

And now, since 'try run at 2016-05-09 10:36:17 UTC', the exception is

Traceback (most recent call last):
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/util.py", line 154, in raises
    yield
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/run.py", line 370, in run_step
    step_result = open_step.run()
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/step_runner.py", line 217, in run
    cmd=cmd, handles=handles, env=step_env, cwd=step_dict.get('cwd'))
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/step_runner.py", line 388, in _run_cmd
    for pipe, data in proc.yield_any(timeout=1):
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/subprocess42.py", line 421, in yield_any
    maxsize=maxsize() if callable(maxsize) else maxsize, timeout=to)
  File "/b/build/scripts/slave/.recipe_deps/recipe_engine/recipe_engine/third_party/subprocess42.py", line 485, in recv_any
    data = self._translate_newlines(data)
  File "/usr/lib/python2.7/subprocess.py", line 704, in _translate_newlines
    data = data.replace("\r\n", "\n")
AttributeError: 'NoneType' object has no attribute 'replace'

iannucci --  you landed a fix for  crbug.com/522396  that touched subprocess42 here -- is is possible that they're related?

I think Pawel landed some fixes for these issues too?

Moving to Infra queue; I don't think this is browser-related at all.

This is fixed in
  https://github.com/luci/recipes-py/commit/8c9b063a8304554e36dd2f9dd495085635223a6b

and 
  https://github.com/luci/recipes-py/commit/cc1dd49f7187be08e630f9a13ceb22f6dbee4c79

Pawel should be the owner for credit.