Resolving dependencies...
Configuring dataenc-0.14.0.5...
Building dataenc-0.14.0.5...
Preprocessing library dataenc-0.14.0.5...
[ 1 of 14] Compiling Codec.Binary.Util ( src/Codec/Binary/Util.hs, dist/build/Codec/Binary/Util.o )
[ 2 of 14] Compiling Codec.Binary.Base32 ( src/Codec/Binary/Base32.hs, dist/build/Codec/Binary/Base32.o )
[ 3 of 14] Compiling Codec.Binary.Base32Hex ( src/Codec/Binary/Base32Hex.hs, dist/build/Codec/Binary/Base32Hex.o )
[ 4 of 14] Compiling Codec.Binary.Base64 ( src/Codec/Binary/Base64.hs, dist/build/Codec/Binary/Base64.o )
[ 5 of 14] Compiling Codec.Binary.Base64Url ( src/Codec/Binary/Base64Url.hs, dist/build/Codec/Binary/Base64Url.o )
[ 6 of 14] Compiling Codec.Binary.Base85 ( src/Codec/Binary/Base85.hs, dist/build/Codec/Binary/Base85.o )
[ 7 of 14] Compiling Codec.Binary.Url ( src/Codec/Binary/Url.hs, dist/build/Codec/Binary/Url.o )
[ 8 of 14] Compiling Codec.Binary.Uu  ( src/Codec/Binary/Uu.hs, dist/build/Codec/Binary/Uu.o )
[ 9 of 14] Compiling Codec.Binary.Xx  ( src/Codec/Binary/Xx.hs, dist/build/Codec/Binary/Xx.o )
[10 of 14] Compiling Codec.Binary.QuotedPrintable ( src/Codec/Binary/QuotedPrintable.hs, dist/build/Codec/Binary/QuotedPrintable.o )
[11 of 14] Compiling Codec.Binary.PythonString ( src/Codec/Binary/PythonString.hs, dist/build/Codec/Binary/PythonString.o )
[12 of 14] Compiling Codec.Binary.Yenc ( src/Codec/Binary/Yenc.hs, dist/build/Codec/Binary/Yenc.o )
[13 of 14] Compiling Codec.Binary.Base16 ( src/Codec/Binary/Base16.hs, dist/build/Codec/Binary/Base16.o )
[14 of 14] Compiling Codec.Binary.DataEncoding ( src/Codec/Binary/DataEncoding.hs, dist/build/Codec/Binary/DataEncoding.o )
In-place registering dataenc-0.14.0.5...
Running Haddock for dataenc-0.14.0.5...
Running hscolour for dataenc-0.14.0.5...
Preprocessing library dataenc-0.14.0.5...
Preprocessing library dataenc-0.14.0.5...
Haddock coverage:
  56% (  5 /  9) in 'Codec.Binary.Util'
 100% ( 11 / 11) in 'Codec.Binary.Base32'
 100% ( 11 / 11) in 'Codec.Binary.Base32Hex'
 100% ( 11 / 11) in 'Codec.Binary.Base64'
 100% ( 11 / 11) in 'Codec.Binary.Base64Url'
 100% ( 11 / 11) in 'Codec.Binary.Base85'
 100% ( 11 / 11) in 'Codec.Binary.Url'
 100% ( 11 / 11) in 'Codec.Binary.Uu'
 100% ( 11 / 11) in 'Codec.Binary.Xx'
 100% ( 11 / 11) in 'Codec.Binary.QuotedPrintable'
 100% ( 11 / 11) in 'Codec.Binary.PythonString'
 100% ( 11 / 11) in 'Codec.Binary.Yenc'
 100% ( 11 / 11) in 'Codec.Binary.Base16'
  76% ( 13 / 17) in 'Codec.Binary.DataEncoding'
Documentation created: dist/doc/html/dataenc/index.html
Installing library in
/srv/hackage/var/build/tmp-install/lib/x86_64-linux-ghc-7.6.3/dataenc-0.14.0.5
Registering dataenc-0.14.0.5...
Installed dataenc-0.14.0.5
Downloading buster-2.0...
Configuring buster-2.0...
Building buster-2.0...
Preprocessing library buster-2.0...
[1 of 5] Compiling App.EventBus     ( App/EventBus.hs, dist/build/App/EventBus.o )

App/EventBus.hs:224:10:
    Illegal instance declaration for `Monoid (Behaviour a)'
      (All instance types must be of the form (T a1 ... an)
       where a1 ... an are *distinct type variables*,
       and each type variable appears at most once in the instance head.
       Use -XFlexibleInstances if you want to disable this.)
    In the instance declaration for `Monoid (Behaviour a)'
Failed to install buster-2.0
cabal: Error: some packages failed to install:
buster-2.0 failed during the building phase. The exception was:
ExitFailure 1