Resolving dependencies...
Configuring mtl-2.2.1...
Configuring fgl-5.5.3.0...
Building mtl-2.2.1...
Building fgl-5.5.3.0...
Installed mtl-2.2.1
Configuring syb-0.6...
Building syb-0.6...
Configuring text-1.2.2.1...
Installed fgl-5.5.3.0
Installed syb-0.6
Building text-1.2.2.1...
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Building parsec-3.1.11...
Installed parsec-3.1.11
Downloading graph-utils-0.3.5.2...
Configuring graph-utils-0.3.5.2...
Building graph-utils-0.3.5.2...
Failed to install graph-utils-0.3.5.2
Build log ( /home/builder/.cabal/logs/graph-utils-0.3.5.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-23762/graph-utils-0.3.5.2'
Configuring graph-utils-0.3.5.2...
Building graph-utils-0.3.5.2...
Preprocessing library graph-utils-0.3.5.2...
[1 of 2] Compiling Data.Graph.PageRank ( Data/Graph/PageRank.hs, dist/build/Data/Graph/PageRank.o )
[2 of 2] Compiling Data.Graph.EasyGrapher ( Data/Graph/EasyGrapher.hs, dist/build/Data/Graph/EasyGrapher.o )

Data/Graph/EasyGrapher.hs:4:1: error:
    Failed to load interface for ‘Data.Graph.EasyGrapher.EasyGrapher’
    Use -v to see a list of the files searched for.

Data/Graph/EasyGrapher.hs:5:1: error:
    Failed to load interface for ‘Data.Graph.EasyGrapher.Quote’
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-23762/graph-utils-0.3.5.2'
cabal: Error: some packages failed to install:
graph-utils-0.3.5.2 failed during the building phase. The exception was:
ExitFailure 1