ExitFailure 9 при попытке установить ghc-mod с помощью Cabal

Когда я пытаюсь установить его с помощью cabal, я получаю

~$ cabal install ghc-mod
Resolving dependencies...
[1 of 1] Compiling Main             ( /tmp/haskell-src-exts-1.13.5-21238/haskell-src-exts-1.13.5/Setup.hs, /tmp/haskell-src-exts-1.13.5-21238/haskell-src-exts-1.13.5/dist/setup/Main.o )

/tmp/haskell-src-exts-1.13.5-21238/haskell-src-exts-1.13.5/Setup.hs:1:1:
    Warning: In the use of `runTests'
             (imported from Distribution.Simple, but defined in Distribution.Simple.UserHooks):
             Deprecated: "Please use the new testing interface instead!"
Linking /tmp/haskell-src-exts-1.13.5-21238/haskell-src-exts-1.13.5/dist/setup/setup ...
Configuring haskell-src-exts-1.13.5...
Building haskell-src-exts-1.13.5...
Preprocessing library haskell-src-exts-1.13.5...

dist/build/Language/Haskell/Exts/InternalParser.hs:1:12:
    Warning: -fglasgow-exts is deprecated: Use individual extensions instead
[ 1 of 22] Compiling Language.Haskell.Exts.Annotated.Syntax ( src/Language/Haskell/Exts/Annotated/Syntax.hs, dist/build/Language/Haskell/Exts/Annotated/Syntax.o )
cabal: Error: some packages failed to install:
ghc-mod-1.11.1 depends on haskell-src-exts-1.13.5 which failed to install.
haskell-src-exts-1.13.5 failed during the building phase. The exception was:
ExitFailure 9
hlint-1.8.33 depends on haskell-src-exts-1.13.5 which failed to install.

Я не совсем уверен, куда идти отсюда. Как узнать, почему это не удалось?

edit: Я использую GHC версии 7.4.1 и Cabal версии 1.14.0

Запуск Cabal в многословном режиме, похоже, не дает никаких подсказок, кроме:

...

World file is already up to date.
cabal: Error: some packages failed to install:
ghc-mod-1.11.1 depends on haskell-src-exts-1.13.5 which failed to install.
haskell-src-exts-1.13.5 failed during the building phase. The exception was:
ExitFailure 9
hlint-1.8.33 depends on haskell-src-exts-1.13.5 which failed to install.

Ответ 1