Resolving dependencies...
Configuring ansi-terminal-0.6.2.3...
Configuring transformers-compat-0.5.1.4...
Building ansi-terminal-0.6.2.3...
Building transformers-compat-0.5.1.4...
Installed transformers-compat-0.5.1.4
Installed ansi-terminal-0.6.2.3
Configuring ansi-wl-pprint-0.6.7.3...
Building ansi-wl-pprint-0.6.7.3...
Installed ansi-wl-pprint-0.6.7.3
Configuring optparse-applicative-0.13.0.0...
Building optparse-applicative-0.13.0.0...
Installed optparse-applicative-0.13.0.0
Downloading standalone-haddock-1.0...
Configuring standalone-haddock-1.0...
Building standalone-haddock-1.0...
Failed to install standalone-haddock-1.0
Build log ( /home/builder/.cabal/logs/standalone-haddock-1.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-24563/standalone-haddock-1.0'
Configuring standalone-haddock-1.0...
Building standalone-haddock-1.0...
Preprocessing executable 'standalone-haddock' for standalone-haddock-1.0...
[1 of 1] Compiling Main             ( src/Main.hs, dist/build/standalone-haddock/standalone-haddock-tmp/Main.o )

src/Main.hs:2:1: error:
    Failed to load interface for ‘Cabal.Simple’
    Use -v to see a list of the files searched for.

src/Main.hs:3:1: error:
    Failed to load interface for ‘Cabal.Haddock’
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-24563/standalone-haddock-1.0'
cabal: Error: some packages failed to install:
standalone-haddock-1.0 failed during the building phase. The exception was:
ExitFailure 1