Resolving dependencies...
Configuring GenericPretty-1.2.1...
Building GenericPretty-1.2.1...
Installed GenericPretty-1.2.1
Configuring remark-0.0.0.0...
Building remark-0.0.0.0...
Failed to install remark-0.0.0.0
Build log ( /home/builder/.cabal/logs/remark-0.0.0.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-15598/remark-0.0.0.0'
Configuring remark-0.0.0.0...
Building remark-0.0.0.0...
Preprocessing library remark-0.0.0.0...
[1 of 4] Compiling Ast              ( src/Ast.hs, dist/build/Ast.o )
[2 of 4] Compiling Parser.Impl      ( src/Parser/Impl.hs, dist/build/Parser/Impl.o )
[3 of 4] Compiling Parser           ( src/Parser.hs, dist/build/Parser.o )
[4 of 4] Compiling Validator        ( src/Validator.hs, dist/build/Validator.o )
Preprocessing executable 'remark' for remark-0.0.0.0...
[1 of 1] Compiling Main             ( app/Main.hs, dist/build/remark/remark-tmp/Main.o )

app/Main.hs:40:9: error:
    parse error on input ‘=’
    Perhaps you need a 'let' in a 'do' block?
    e.g. 'let x = 5' instead of 'x = 5'
cabal: Leaving directory '/tmp/cabal-tmp-15598/remark-0.0.0.0'
cabal: Error: some packages failed to install:
remark-0.0.0.0 failed during the building phase. The exception was:
ExitFailure 1