Resolving dependencies...
Downloading dotgen-0.2...
Configuring haskell-lexer-1.0.1...
Configuring dotgen-0.2...
Building haskell-lexer-1.0.1...
Building dotgen-0.2...
Failed to install dotgen-0.2
Build log ( /home/builder/.cabal/logs/dotgen-0.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-9495/dotgen-0.2'
Configuring dotgen-0.2...
Building dotgen-0.2...
Preprocessing library dotgen-0.2...
[1 of 1] Compiling Text.Dot         ( Text/Dot.hs, dist/build/Text/Dot.o )

Text/Dot.hs:54:10: error:
    • No instance for (Applicative Dot)
        arising from the superclasses of an instance declaration
    • In the instance declaration for ‘Monad Dot’
cabal: Leaving directory '/tmp/cabal-tmp-9495/dotgen-0.2'
Installed haskell-lexer-1.0.1
cabal: Error: some packages failed to install:
dotgen-0.2 failed during the building phase. The exception was:
ExitFailure 1
graphmod-1.1.3 depends on dotgen-0.2 which failed to install.