Resolving dependencies...
Downloading al-0.1.0.0...
Configuring al-0.1.0.0...
cabal: The program 'c2hs' version >=0.23 && <0.24 is required but the version
found at /home/builder/.cabal/bin/c2hs is version 0.20.1
Failed to install al-0.1.0.0
cabal: Error: some packages failed to install:
al-0.1.0.0 failed during the configure step. The exception was:
ExitFailure 1