Resolving dependencies...
Configuring mtl-2.2.1...
Configuring primitive-0.6.1.0...
Building mtl-2.2.1...
Building primitive-0.6.1.0...
Configuring utf8-string-1.0.1.1...
Installed mtl-2.2.1
Installed primitive-0.6.1.0
Configuring vector-0.11.0.0...
Building utf8-string-1.0.1.1...
Building vector-0.11.0.0...
Installed utf8-string-1.0.1.1
Installed vector-0.11.0.0
Downloading sequor-0.1...
Configuring sequor-0.1...
Building sequor-0.1...
Failed to install sequor-0.1
Build log ( /home/builder/.cabal/logs/sequor-0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-24982/sequor-0.1'
Configuring sequor-0.1...
Building sequor-0.1...
Preprocessing executable 'sequor' for sequor-0.1...
[ 1 of 12] Compiling Utils            ( lib/haskell-utils/Utils.hs, dist/build/sequor/sequor-tmp/Utils.o )
[ 2 of 12] Compiling Text             ( lib/haskell-utils/Text.hs, dist/build/sequor/sequor-tmp/Text.o )
[ 3 of 12] Compiling ListZipper       ( lib/haskell-utils/ListZipper.hs, dist/build/sequor/sequor-tmp/ListZipper.o )
[ 4 of 12] Compiling FeatureTemplate  ( src/FeatureTemplate.hs, dist/build/sequor/sequor-tmp/FeatureTemplate.o )
[ 5 of 12] Compiling CorpusReader     ( src/CorpusReader.hs, dist/build/sequor/sequor-tmp/CorpusReader.o )
[ 6 of 12] Compiling Atom             ( lib/haskell-utils/Atom.hs, dist/build/sequor/sequor-tmp/Atom.o )

lib/haskell-utils/Atom.hs:49:22: error:
    Illegal bang-pattern (use BangPatterns):
    ! t'
cabal: Leaving directory '/tmp/cabal-tmp-24982/sequor-0.1'
cabal: Error: some packages failed to install:
sequor-0.1 failed during the building phase. The exception was:
ExitFailure 1