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ICE: cannot relate region: LUB(ReErased, ReEmpty) #56350
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triage. P-high. I'll assign to my self for initial investigation. |
Seems to compile on the latest nightly ( |
(even if this is fixed by the latest nightly, I want to keep this issue open until we've backport #56282 to beta -- that, or declined to do such a backport. The T-compiler team will address this on Thursday.) |
This was also hit in crater: https://crater-reports.s3.amazonaws.com/beta-1.32-1/beta-2018-12-05/reg/imprint-0.2.0/log.txt |
Getting this ICE when compiling lalrpop/lalrpop#422 / https://github.com/lalrpop/lalrpop/tree/548df5c9f80df7d86500b29d07adfdc1b72a4631
Run
Reproduces on the newest nightly
Does not reproduce on a ~1 week old nightly (so I think it is a different ICE than the similiar ICEs found on the issue tracker).
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