Resolving dependencies...
Configuring text-1.2.2.1...
Building text-1.2.2.1...
Installed text-1.2.2.1
Configuring hashable-1.2.4.0...
Building hashable-1.2.4.0...
Installed hashable-1.2.4.0
Configuring unordered-containers-0.2.7.1...
Building unordered-containers-0.2.7.1...
Installed unordered-containers-0.2.7.1
Configuring HMap-0.912...
Building HMap-0.912...
Failed to install HMap-0.912
Build log ( /home/builder/.cabal/logs/HMap-0.912.log ):
cabal: Entering directory '/tmp/cabal-tmp-10115/HMap-0.912'
Configuring HMap-0.912...
Building HMap-0.912...
Preprocessing library HMap-0.912...
[1 of 1] Compiling Data.HMap        ( Data/HMap.hs, dist/build/Data/HMap.o )

Data/HMap.hs:133:1: error:
    Failed to load interface for ‘Data.Hashable’
    It is a member of the hidden package ‘hashable-1.2.4.0’.
    Perhaps you need to add ‘hashable’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-10115/HMap-0.912'
cabal: Error: some packages failed to install:
HMap-0.912 failed during the building phase. The exception was:
ExitFailure 1