[iOS][OSS][BE] Add simulator tests for Metal

[xta0]

Stack from ghstack:

• -> [iOS][OSS][BE] Add simulator tests for Metal #64852
• [iOS][OSS][BE] Add Simulator tests for full JIT #64851

Differential Revision: D30877961

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💊 CI failures summary and remediations

As of commit b2fb7d9 (more details on the Dr. CI page):

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• 3/3 failures introduced in this PR

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🕵️ 2 new failures recognized by patterns

The following CI failures do not appear to be due to upstream breakages:

linux-xenial-py3.6-gcc5.4 / test (distributed, 1, 1, linux.2xlarge) (1/2)

Step: "Unknown" (full log | diagnosis details | 🔁 rerun)

2021-09-14T00:02:21.9242727Z test_udf_remote_...yUniqueId(created_on=0, local_id=0) to be created.

2021-09-14T00:01:42.8798014Z frame #12: c10::ThreadPool::main_loop(unsigned long) + 0x2a3 (0x7f5fa229b263 in /opt/conda/lib/python3.6/site-packages/torch/lib/libc10.so)
2021-09-14T00:01:42.8799644Z frame #13: <unknown function> + 0xc92bd (0x7f5fa21cc2bd in /opt/conda/lib/libstdc++.so.6)
2021-09-14T00:01:42.8801359Z frame #14: <unknown function> + 0x76ba (0x7f5fb75316ba in /lib/x86_64-linux-gnu/libpthread.so.0)
2021-09-14T00:01:42.8803225Z frame #15: clone + 0x6d (0x7f5fb726751d in /lib/x86_64-linux-gnu/libc.so.6)
2021-09-14T00:01:42.8804032Z 
2021-09-14T00:01:43.0628790Z ok (3.317s)
2021-09-14T00:01:57.9979826Z   test_rpc_builtin_timeout (__main__.FaultyFaultyAgentRpcTest) ... ok (14.935s)
2021-09-14T00:02:06.9234916Z   test_rpc_script_timeout (__main__.FaultyFaultyAgentRpcTest) ... ok (8.925s)
2021-09-14T00:02:10.3401498Z   test_rref_to_here_timeout (__main__.FaultyFaultyAgentRpcTest) ... ok (3.417s)
2021-09-14T00:02:17.7625560Z   test_udf_remote_message_delay_timeout (__main__.FaultyFaultyAgentRpcTest) ... ok (7.422s)
2021-09-14T00:02:21.9242727Z   test_udf_remote_message_delay_timeout_to_self (__main__.FaultyFaultyAgentRpcTest) ... [E request_callback_no_python.cpp:559] Received error while processing request type 261: falseINTERNAL ASSERT FAILED at "/var/lib/jenkins/workspace/torch/csrc/distributed/rpc/rref_context.cpp":387, please report a bug to PyTorch. Expected OwnerRRef with id GloballyUniqueId(created_on=0, local_id=0) to be created.
2021-09-14T00:02:21.9245409Z Exception raised from getOwnerRRef at /var/lib/jenkins/workspace/torch/csrc/distributed/rpc/rref_context.cpp:387 (most recent call first):
2021-09-14T00:02:21.9247403Z frame #0: c10::Error::Error(c10::SourceLocation, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) + 0x69 (0x7fc8e9b3c429 in /opt/conda/lib/python3.6/site-packages/torch/lib/libc10.so)
2021-09-14T00:02:21.9249181Z frame #1: c10::detail::torchCheckFail(char const*, char const*, unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) + 0xd2 (0x7fc8e9b389d2 in /opt/conda/lib/python3.6/site-packages/torch/lib/libc10.so)
2021-09-14T00:02:21.9251387Z frame #2: c10::detail::torchInternalAssertFail(char const*, char const*, unsigned int, char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) + 0x4e (0x7fc8e9b3a36e in /opt/conda/lib/python3.6/site-packages/torch/lib/libc10.so)
2021-09-14T00:02:21.9253324Z frame #3: torch::distributed::rpc::RRefContext::getOwnerRRef(torch::distributed::rpc::GloballyUniqueId const&, bool) + 0x4a4 (0x7fc8edd8b844 in /opt/conda/lib/python3.6/site-packages/torch/lib/libtorch_cpu.so)
2021-09-14T00:02:21.9255815Z frame #4: torch::distributed::rpc::RequestCallbackNoPython::assignOwnerRRef(torch::distributed::rpc::GloballyUniqueId const&, torch::distributed::rpc::GloballyUniqueId const&, c10::intrusive_ptr<c10::ivalue::Future, c10::detail::intrusive_target_default_null_type<c10::ivalue::Future> >) const + 0x71 (0x7fc8edd7bd61 in /opt/conda/lib/python3.6/site-packages/torch/lib/libtorch_cpu.so)
2021-09-14T00:02:21.9258714Z frame #5: torch::distributed::rpc::RequestCallbackImpl::processPythonRemoteCall(torch::distributed::rpc::RpcCommandBase&, std::vector<c10::Stream, std::allocator<c10::Stream> >) const + 0xc8 (0x7fc8f6190d68 in /opt/conda/lib/python3.6/site-packages/torch/lib/libtorch_python.so)
2021-09-14T00:02:21.9261222Z frame #6: torch::distributed::rpc::RequestCallbackNoPython::processRpc(torch::distributed::rpc::RpcCommandBase&, torch::distributed::rpc::MessageType const&, std::vector<c10::Stream, std::allocator<c10::Stream> >) const + 0x194 (0x7fc8edd80554 in /opt/conda/lib/python3.6/site-packages/torch/lib/libtorch_cpu.so)
2021-09-14T00:02:21.9263804Z frame #7: torch::distributed::rpc::RequestCallbackImpl::processRpcWithErrors(torch::distributed::rpc::RpcCommandBase&, torch::distributed::rpc::MessageType const&, std::vector<c10::Stream, std::allocator<c10::Stream> >) const + 0x65 (0x7fc8f6190365 in /opt/conda/lib/python3.6/site-packages/torch/lib/libtorch_python.so)
2021-09-14T00:02:21.9265553Z frame #8: <unknown function> + 0x400710a (0x7fc8edd7d10a in /opt/conda/lib/python3.6/site-packages/torch/lib/libtorch_cpu.so)

pytorch_ios_12_5_1_x86_64_metal_build (2/2)

Step: "Run Simulator Tests" (full log | diagnosis details | 🔁 rerun)

[!] Tests have failed�[0m

[23:58:03]: ▸ �[35mLoading...�[0m
[00:00:58]: �[31mExit status: 65�[0m
+--------------------+---+
|      Test Results      |
+--------------------+---+
| Number of tests    | 1 |
| Number of failures | �[31m1�[0m |
+--------------------+---+

�[31m
[!] Tests have failed�[0m

#######################################################################
# fastlane 2.193.1 is available. You are on 2.185.1.
# You should use the latest version.
# Please update using `gem install fastlane`.
#######################################################################

�[32m2.193.1 Improvements�[0m
* [gradle] add output context with "tasks" options (#19312) via David Kuo
* [match] ignore force_for_new_devices for developer_id provisioning type (#19314) via Vitalii Budnik

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1 failure not recognized by patterns:

Job	Step	Action
Lint / quick-checks	Ensure correct trailing newlines	🔁 rerun

---

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Looks like this PR hasn't been updated in a while so we're going to go ahead and mark this as Stale.
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