haskell-fail <-- amd64 sad, RC buggy in Debian
haskell-monadcatchio-transformers <-- removed in Debian
haskell-zlib-enum <-- removed in Debian
haskelldb <-- removed in Debian
haskelldb-hdbc <-- removed in Debian
agda <-- ppc64el sadness affecting debian too, probably not installable due to dh-elpa and emacs24 (mir for emacs25 should fix it)
haskell-xmlhtml <-- arm64 s390x gcc bug, not affecting Debian, somebody should investigate it :p
haskell-heist, haskell-snap ^^
haskell-blaze-builder-enumerator <-- removed in Debian
haskell-wreq <-- RC buggy in Debian, FTBFS
gitit <-- arm64 sad, RC buggy in Debian | needs a build to complete + publisher + britney
haskell-lambdabot-haskell-plugins <-- some architectures are failing, same in Debian | needs a build to complete + publisher + britney