compiler crash building hashed-storage 0.5.3
ghc: panic! (the 'impossible' happened)
(GHC version 7.0.0.20100924 for x86_64-unknown-linux):
Expected one of wanted constraints (BUG)
This happens with cabal install hashed-storage-0.5.3
, but that's a bit of a pain to reproduce as it depends on dataenc which needs a dependency bump. I cut it down to the attached file which just depends on mtl.
Trac metadata
Trac field | Value |
---|---|
Version | 6.13 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | ganesh |
Operating system | |
Architecture |