Resolving dependencies...
Configuring mtl-2.2.1...
Building mtl-2.2.1...
Installed mtl-2.2.1
Configuring packer-0.1.4...
Building packer-0.1.4...
Failed to install packer-0.1.4
Build log ( /home/builder/.cabal/logs/packer-0.1.4.log ):
cabal: Entering directory '/tmp/cabal-tmp-19073/packer-0.1.4'
Configuring packer-0.1.4...
Building packer-0.1.4...
Preprocessing library packer-0.1.4...
[1 of 5] Compiling Data.Packer.Internal ( Data/Packer/Internal.hs, dist/build/Data/Packer/Internal.o )
[2 of 5] Compiling Data.Packer.Unsafe ( Data/Packer/Unsafe.hs, dist/build/Data/Packer/Unsafe.o )
[3 of 5] Compiling Data.Packer.IO   ( Data/Packer/IO.hs, dist/build/Data/Packer/IO.o )
[4 of 5] Compiling Data.Packer.Endian ( Data/Packer/Endian.hs, dist/build/Data/Packer/Endian.o )
[5 of 5] Compiling Data.Packer      ( Data/Packer.hs, dist/build/Data/Packer.o )

Data/Packer.hs:85:1: error:
    Failed to load interface for ‘Data.Packer.IEEE754’
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-19073/packer-0.1.4'
cabal: Error: some packages failed to install:
packer-0.1.4 failed during the building phase. The exception was:
ExitFailure 1