Resolving dependencies...
Configuring operational-0.2.2.1...
Building operational-0.2.2.1...
Preprocessing executable 'operational-TicTacToe' for operational-0.2.2.1...
[1 of 2] Compiling Control.Monad.Operational ( src/Control/Monad/Operational.hs, dist/build/operational-TicTacToe/operational-TicTacToe-tmp/Control/Monad/Operational.o )
[2 of 2] Compiling Main             ( doc/examples/TicTacToe.hs, dist/build/operational-TicTacToe/operational-TicTacToe-tmp/Main.o )
Linking dist/build/operational-TicTacToe/operational-TicTacToe ...
Preprocessing library operational-0.2.2.1...
[1 of 1] Compiling Control.Monad.Operational ( src/Control/Monad/Operational.hs, dist/build/Control/Monad/Operational.o )
In-place registering operational-0.2.2.1...
Running Haddock for operational-0.2.2.1...
Running hscolour for operational-0.2.2.1...
Preprocessing executable 'operational-TicTacToe' for operational-0.2.2.1...
Preprocessing library operational-0.2.2.1...
Preprocessing executable 'operational-TicTacToe' for operational-0.2.2.1...
Preprocessing library operational-0.2.2.1...
Warning: The documentation for the following packages are not installed. No
links will be generated to these packages: rts-1.0, mtl-2.1.2, random-1.0.1.1,
transformers-0.3.0.0
Haddock coverage:
  94% ( 17 / 18) in 'Control.Monad.Operational'
Warning: Control.Monad.Operational: could not find link destinations for:
    Data.Functor.Identity.Identity Control.Monad.Trans.Class.lift Control.Monad.State.Class.MonadState Control.Monad.Trans.Class.MonadTrans Control.Monad.IO.Class.MonadIO
Documentation created: dist/doc/html/operational/index.html
Installing library in
/srv/hackage/var/build/tmp-install/lib/operational-0.2.2.1/ghc-7.6.3
Installing executable(s) in /srv/hackage/var/build/tmp-install/bin
Registering operational-0.2.2.1...
Installed operational-0.2.2.1
Downloading Etage-0.1.5...
Configuring Etage-0.1.5...
Building Etage-0.1.5...
Preprocessing library Etage-0.1.5...
[ 1 of 14] Compiling Control.Etage.Chan ( lib/Control/Etage/Chan.hs, dist/build/Control/Etage/Chan.o )
[ 2 of 14] Compiling Control.Etage.Internals ( lib/Control/Etage/Internals.hs, dist/build/Control/Etage/Internals.o )

lib/Control/Etage/Internals.hs:132:1:
    Duplicate instance declarations:
      instance Typeable1 SampleVar
        -- Defined at lib/Control/Etage/Internals.hs:132:1
      instance Typeable1 SampleVar
        -- Defined in `Control.Concurrent.SampleVar'
Failed to install Etage-0.1.5
cabal: Error: some packages failed to install:
Etage-0.1.5 failed during the building phase. The exception was:
ExitFailure 1