Resolving dependencies...
Downloading lca-0.1...
Configuring lca-0.1...
Building lca-0.1...
Failed to install lca-0.1
Build log ( /home/builder/.cabal/logs/lca-0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-13436/lca-0.1'
Configuring lca-0.1...
Building lca-0.1...
Preprocessing library lca-0.1...
[1 of 2] Compiling Data.LCA.Online.Naive ( src/Data/LCA/Online/Naive.hs, dist/build/Data/LCA/Online/Naive.o )

src/Data/LCA/Online/Naive.hs:91:11: error:
    Ambiguous occurrence ‘length’
    It could refer to either ‘Prelude.length’,
                             imported from ‘Data.Foldable’ at src/Data/LCA/Online/Naive.hs:30:1-36
                          or ‘Data.LCA.Online.Naive.length’,
                             defined at src/Data/LCA/Online/Naive.hs:62:1

src/Data/LCA/Online/Naive.hs:92:11: error:
    Ambiguous occurrence ‘length’
    It could refer to either ‘Prelude.length’,
                             imported from ‘Data.Foldable’ at src/Data/LCA/Online/Naive.hs:30:1-36
                          or ‘Data.LCA.Online.Naive.length’,
                             defined at src/Data/LCA/Online/Naive.hs:62:1

src/Data/LCA/Online/Naive.hs:103:34: error:
    Ambiguous occurrence ‘length’
    It could refer to either ‘Prelude.length’,
                             imported from ‘Data.Foldable’ at src/Data/LCA/Online/Naive.hs:30:1-36
                          or ‘Data.LCA.Online.Naive.length’,
                             defined at src/Data/LCA/Online/Naive.hs:62:1
cabal: Leaving directory '/tmp/cabal-tmp-13436/lca-0.1'
cabal: Error: some packages failed to install:
lca-0.1 failed during the building phase. The exception was:
ExitFailure 1