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Benjamin Kietzman authored and Krisztián Szűcs committed 32de9fa71da
ARROW-8428: [C++] GCC 4.8 Implicit move-on-return failure in C++ tests @kszucs ideally this would be caught by CI. It's not caught by [manylinux1](https://github.com/apache/arrow/pull/6894/files#diff-c3f6c815734a6b07796306773dbae224R206) since that job doesn't build the C++ tests Closes #6916 from bkietz/8428-GCC-4-8-failures-in-C-uni Authored-by: Benjamin Kietzman <bengilgit@gmail.com> Signed-off-by: Krisztián Szűcs <szucs.krisztian@gmail.com>