Resolving dependencies...
Configuring ansi-terminal-0.6.2.3...
Configuring haskell-lexer-1.0.1...
Building haskell-lexer-1.0.1...
Building ansi-terminal-0.6.2.3...
Configuring pcre-light-0.4.0.4...
Installed ansi-terminal-0.6.2.3
Building pcre-light-0.4.0.4...
Installed pcre-light-0.4.0.4
Installed haskell-lexer-1.0.1
Configuring colorize-haskell-1.0.1...
Building colorize-haskell-1.0.1...
Installed colorize-haskell-1.0.1
Downloading ghc-core-0.5.2...
Configuring ghc-core-0.5.2...
Building ghc-core-0.5.2...
Failed to install ghc-core-0.5.2
Build log ( /home/builder/.cabal/logs/ghc-core-0.5.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-7094/ghc-core-0.5.2'
Configuring ghc-core-0.5.2...
Building ghc-core-0.5.2...
Preprocessing executable 'ghc-core' for ghc-core-0.5.2...
[1 of 1] Compiling Main             ( ghc-core.hs, dist/build/ghc-core/ghc-core-tmp/Main.o )

ghc-core.hs:26:1: error:
    Failed to load interface for ‘Control.OldException’
    Perhaps you meant Control.Exception (from base-4.9.0.0)
    Use -v to see a list of the files searched for.

ghc-core.hs:38:1: error:
    Failed to load interface for ‘Control.OldException’
    Perhaps you meant Control.Exception (from base-4.9.0.0)
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-7094/ghc-core-0.5.2'
cabal: Error: some packages failed to install:
ghc-core-0.5.2 failed during the building phase. The exception was:
ExitFailure 1