Bug#901306: pandoc: FTBFS on armhf: ghc: panic

[John MacFarlane]

It would be worth reporting this as a bug to the ghc
tracker, as requested in the message.

Emilio Pozuelo Monfort <pochu at debian.org> writes:

> Source: pandoc
> Version: 2.2.1-1
> Severity: serious
>
> pandoc now FTBFS on armhf with a ghc panic:
>
> [112 of 131] Compiling Text.Pandoc.Readers.HTML ( src/Text/Pandoc/Readers/HTML.hs, dist-ghc/build/Text/Pandoc/Readers/HTML.p_o )
> ghc: panic! (the 'impossible' happened)
>   (GHC version 8.2.2 for arm-unknown-linux):
> 	piResultTy
>   Addr#
>   String
>   Call stack:
>       CallStack (from HasCallStack):
>         prettyCurrentCallStack, called at compiler/utils/Outputable.hs:1133:58 in ghc:Outputable
>         callStackDoc, called at compiler/utils/Outputable.hs:1137:37 in ghc:Outputable
>         pprPanic, called at compiler/types/Type.hs:949:35 in ghc:Type
>
> Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
>
> Full logs at https://buildd.debian.org/status/logs.php?pkg=pandoc&arch=armhf
>
> Emilio