[Regression] test fails on 1.14.0-beta.2 (e627a2e6e 2016-11-16) with 'attempt to add with overflow' #37959
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This is intentional and it also was a regression that it stopped panicking (in 1.12 ?). It was fixed to not silently overflow in #36365 |
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Apparently code depended on regression in the stable rustc to work. Newest beta rustc (1.14) fixes the regression, so the code would no longer work. rust-lang/rust#37959
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Sure enough. Not a bug, but a fix to a regression introduced by MIR. |
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Regressed from current and past stable (works on 1.13.0, 1.12.1) to current beta (1.14.0).
Error:
Probably the code that beta handles wrongly: zetok/tox@0885d7e#diff-47bd9ee511e98206d1a2d1ad0809b219R1427
Works on stable rustc 1.13.0 (2c6933a 2016-11-07): https://travis-ci.org/zetok/tox/jobs/177605738#L960
Failed on beta rustc 1.14.0-beta.2 (e627a2e 2016-11-16): https://travis-ci.org/zetok/tox/jobs/177605739#L1137
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