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Auto merge of #38945 - battisti:fix_thread_num, r=alexcrichton
treat setting the number of test-threads to 0 as an error It is currently possible to call `cargo test -- --test-threads=0` which will cause cargo to hang until aborted. This change will fix that and will report an appropriate error to the user.
1.0.1914
8 years ago by bors
8 years ago in 2 hr 11 min