Resolving dependencies...
Configuring old-locale-1.0.0.7...
Configuring mtl-2.2.1...
Building old-locale-1.0.0.7...
Building mtl-2.2.1...
Installed old-locale-1.0.0.7
Configuring text-1.2.2.1...
Building text-1.2.2.1...
Configuring old-time-1.1.0.3...
Installed mtl-2.2.1
Building old-time-1.1.0.3...
Configuring utf8-string-1.0.1.1...
Installed old-time-1.1.0.3
Building utf8-string-1.0.1.1...
Installed utf8-string-1.0.1.1
Installed text-1.2.2.1
Configuring polyparse-1.12...
Building polyparse-1.12...
Installed polyparse-1.12
Configuring cpphs-1.20.2...
Building cpphs-1.20.2...
Installed cpphs-1.20.2
Configuring haskell-src-exts-1.19.1...
Building haskell-src-exts-1.19.1...
Installed haskell-src-exts-1.19.1
Downloading hsx-0.4.5...
Configuring hsx-0.4.5...
Building hsx-0.4.5...
Failed to install hsx-0.4.5
Build log ( /home/builder/.cabal/logs/hsx-0.4.5.log ):
cabal: Entering directory '/tmp/cabal-tmp-16359/hsx-0.4.5'
Configuring hsx-0.4.5...
Building hsx-0.4.5...
Preprocessing library hsx-0.4.5...

on the commandline: warning:
    -XOverlappingInstances is deprecated: instead use per-instance pragmas OVERLAPPING/OVERLAPPABLE/OVERLAPS
[1 of 2] Compiling HSX.XMLGenerator ( src/HSX/XMLGenerator.hs, dist/build/HSX/XMLGenerator.o )

src/HSX/XMLGenerator.hs:26:13: error:
    • No instance for (Applicative (XMLGenT m))
        arising from the 'deriving' clause of a data type declaration
      Possible fix:
        use a standalone 'deriving instance' declaration,
          so you can specify the instance context yourself
    • When deriving the instance for (Monad (XMLGenT m))
cabal: Leaving directory '/tmp/cabal-tmp-16359/hsx-0.4.5'
cabal: Error: some packages failed to install:
hsx-0.4.5 failed during the building phase. The exception was:
ExitFailure 1