Resolving dependencies...
Configuring data-default-class-0.1.2.0...
Configuring old-locale-1.0.0.7...
Building old-locale-1.0.0.7...
Building data-default-class-0.1.2.0...
Configuring dlist-0.8.0.2...
Installed old-locale-1.0.0.7
Installed data-default-class-0.1.2.0
Configuring data-default-instances-containers-0.0.1...
Building dlist-0.8.0.2...
Building data-default-instances-containers-0.0.1...
Configuring data-default-instances-old-locale-0.0.1...
Installed data-default-instances-containers-0.0.1
Building data-default-instances-old-locale-0.0.1...
Installed dlist-0.8.0.2
Configuring data-default-instances-dlist-0.0.1...
Installed data-default-instances-old-locale-0.0.1
Building data-default-instances-dlist-0.0.1...
Installed data-default-instances-dlist-0.0.1
Configuring data-default-0.7.1.1...
Building data-default-0.7.1.1...
Installed data-default-0.7.1.1
Configuring X11-1.7...
Building X11-1.7...
Installed X11-1.7
Configuring HGL-3.2.0.4...
Building HGL-3.2.0.4...
Failed to install HGL-3.2.0.4
Build log ( /home/builder/.cabal/logs/HGL-3.2.0.4.log ):
cabal: Entering directory '/tmp/cabal-tmp-10710/HGL-3.2.0.4'
Configuring HGL-3.2.0.4...
Building HGL-3.2.0.4...
Preprocessing library HGL-3.2.0.4...
[ 1 of 27] Compiling Graphics.HGL.Internals.Utilities ( Graphics/HGL/Internals/Utilities.hs, dist/build/Graphics/HGL/Internals/Utilities.o )

Graphics/HGL/Internals/Utilities.hs:17:1: warning: [-Wtabs]
    Tab character found here, and in three further locations.
    Please use spaces instead.
[ 2 of 27] Compiling Graphics.HGL.X11.Display ( Graphics/HGL/X11/Display.hs, dist/build/Graphics/HGL/X11/Display.o )

Graphics/HGL/X11/Display.hs:17:25: error:
    Module ‘System.IO.Error’ does not export ‘try’
cabal: Leaving directory '/tmp/cabal-tmp-10710/HGL-3.2.0.4'
cabal: Error: some packages failed to install:
HGL-3.2.0.4 failed during the building phase. The exception was:
ExitFailure 1