See: https://github.com/GraphBLAS/python-suitesparse-graphblas/actions/runs/5035542365/jobs/9031130433 Raw log attached for posterity: [macos_x86_64_log.txt](https://github.com/GraphBLAS/python-suitesparse-graphblas/files/11526377/macos_x86_64_log.txt) Looks like something bad is happening in `test_matrix_binfile_read_write`.