Resolving dependencies...
Configuring haskell-lexer-1.0...
cabal: '/opt/ghc/7.10.2/bin/ghc-pkg' exited with an error:
ghc-pkg: /home/builder/hackage-server/build-cache/tmp-install/packages.db:
getDirectoryContents: does not exist (No such file or directory)
Failed to install haskell-lexer-1.0
cabal: Error: some packages failed to install:
haskell-lexer-1.0 failed during the configure step. The exception was:
ExitFailure 1
pretty-show-1.6.9 depends on haskell-lexer-1.0 which failed to install.
sexp-show-0.1.1.0 depends on haskell-lexer-1.0 which failed to install.