Github user jbapple-cloudera commented on the issue:
https://github.com/apache/thrift/pull/1232
UBSan refuses to report an error more than once, and unfortunately it does
not have a way to override this behavior. So, once you've seen one UBSan error
at a particular line in a particular function, it won't report it again until
the binary exits.
I agree that we are not using boost::filesystem::path. This was a different
error from
https://github.com/boostorg/lexical_cast/blob/boost-1.54.0/include/boost/lexical_cast.hpp#L1620.
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