[AutoTVM] Remove exception handling of autotvm xgboost extract functions #10948
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This PR intends to remove the exception handling of various
_extract_***
functions ofxgboost
model in autotvm. The reason is that with this extra layer of exception handling in autotvm,PopenPool
won't be able to capture the exception during worker running and thereforeNone
results withStatus.COMPLETE
could be returned. I didn't add a test bcoz I am not sure what is the best way to mock aNone
result out ofxgboost
ofautotvm
. Any directions would be appreciated!@junrushao1994 @tqchen @vinx13