Show errors from the tasks in the thread pool

[ilia-cher]

Stack from ghstack:

• Show errors from the tasks in the thread pool #33938 Show errors from the tasks in the thread pool

Summary:
Making sure we don't silently ignore exceptions from the tasks in the
thread pool

Test Plan:
python setup.py clean && python setup.py develop install

Differential Revision: D20178603

[dr-ci]

💊 CircleCI build failures summary and remediations

As of commit af005a7 (more details on the Dr. CI page):

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• 1/2 failures introduced in this PR
• 1/2 tentatively recognized as flaky ❄️
  • Click here to rerun these jobs

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🕵️ 1 new failure recognized by patterns

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

pytorch_xla_linux_xenial_py3_6_clang7_build (1/1)

Step: "Build" (full log | pattern match details)

Feb 29 03:45:29 Failed to generate ATEN bindings: ['/var/lib/jenkins/workspace/xla/scripts/generate_code.sh']

Feb 29 03:45:29 Error parsing "Tensor & var_out(Tensor & out, const Tensor & self, IntArrayRef dim, bool unbiased, bool keepdim)": Expecting value: line 1 column 1 (char 0) 
Feb 29 03:45:29 Error parsing "Tensor view(const Tensor & self, IntArrayRef size)": Expecting value: line 1 column 1 (char 0) 
Feb 29 03:45:29 Error parsing "Tensor & zero_(Tensor & self)": Expecting value: line 1 column 1 (char 0) 
Feb 29 03:45:29 Extracted 0 functions (883 errors) from /var/lib/jenkins/workspace/xla/scripts/../../torch/csrc/autograd/generated/RegistrationDeclarations.h 
Feb 29 03:45:29 Traceback (most recent call last): 
Feb 29 03:45:29   File "/var/lib/jenkins/workspace/xla/scripts/gen.py", line 1076, in <module> 
Feb 29 03:45:29     generate(args) 
Feb 29 03:45:29   File "/var/lib/jenkins/workspace/xla/scripts/gen.py", line 1021, in generate 
Feb 29 03:45:29     assert len(errors) == 0 
Feb 29 03:45:29 AssertionError 
Feb 29 03:45:29 Failed to generate ATEN bindings: ['/var/lib/jenkins/workspace/xla/scripts/generate_code.sh'] 
Feb 29 03:45:29 Building torch_xla version: 0.8 
Feb 29 03:45:29 =================== sccache compilation log =================== 
Feb 29 03:45:29 + cleanup 
Feb 29 03:45:29 + retcode=1 
Feb 29 03:45:29 + set +x 
Feb 29 03:45:29 =========== If your build fails, please take a look at the log above for possible reasons =========== 
Feb 29 03:45:29 Compile requests              3379 
Feb 29 03:45:29 Compile requests executed     3118 
Feb 29 03:45:29 Cache hits                    3102 
Feb 29 03:45:29 Cache misses                     4 

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❄️ 1 tentatively flaky failure

1 failure tentatively classified as flaky but have not launched reruns to confirm:

pytorch_linux_xenial_cuda10_1_cudnn7_py3_gcc7_test (1/1)

Step: "Set Up CI Environment After attach_workspace" (full log | pattern match details) ❄️

E: Failed to fetch https://packagecloud.io/circleci/trusty/ubuntu/dists/xenial/main/source/Sources Empty files can't be valid archives

 99% [Working]                                                       821 kB/s 0s                                                                                 Ign:32 https://packagecloud.io/circleci/trusty/ubuntu xenial/main Translation-en 
99% [Working] 99% [Working]               Err:33 https://packagecloud.io/circleci/trusty/ubuntu xenial/main Sources 
  Empty files can't be valid archives 
 99% [Working]               Hit:35 https://packagecloud.io/circleci/trusty/ubuntu xenial/main amd64 Packages 
 100% [Working]                Hit:36 https://packagecloud.io/circleci/trusty/ubuntu xenial/main all Packages 
 100% [Working]                Fetched 5,012 kB in 18s (276 kB/s) 
Reading package lists... 99%  Reading package lists... Done  
W: The repository 'https://packagecloud.io/circleci/trusty/ubuntu xenial Release' does not have a Release file. 
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use. 
N: See apt-secure(8) manpage for repository creation and user configuration details. 
E: Failed to fetch https://packagecloud.io/circleci/trusty/ubuntu/dists/xenial/main/source/Sources  Empty files can't be valid archives 
E: Some index files failed to download. They have been ignored, or old ones used instead. 

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[facebook-github-bot]

@ilia-cher merged this pull request in c206b43.