Resolving dependencies...
Configuring base-orphans-0.5.4...
Configuring data-default-class-0.1.2.0...
Building data-default-class-0.1.2.0...
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Installed base-orphans-0.5.4
Configuring dlist-0.8.0.2...
Building dlist-0.8.0.2...
Configuring mtl-2.2.1...
Installed data-default-class-0.1.2.0
Building mtl-2.2.1...
Configuring prelude-extras-0.4.0.3...
Installed dlist-0.8.0.2
Building prelude-extras-0.4.0.3...
Configuring safe-0.3.10...
Installed mtl-2.2.1
Building safe-0.3.10...
Configuring primitive-0.6.1.0...
Installed prelude-extras-0.4.0.3
Configuring split-0.2.3.1...
Installed safe-0.3.10
Building primitive-0.6.1.0...
Building split-0.2.3.1...
Configuring stm-2.4.4.1...
Installed split-0.2.3.1
Building stm-2.4.4.1...
Configuring semigroups-0.18.2...
Installed primitive-0.6.1.0
Building semigroups-0.18.2...
Configuring time-locale-compat-0.1.1.3...
Installed stm-2.4.4.1
Building time-locale-compat-0.1.1.3...
Configuring text-1.2.2.1...
Installed semigroups-0.18.2
Building text-1.2.2.1...
Configuring transformers-compat-0.5.1.4...
Installed time-locale-compat-0.1.1.3
Building transformers-compat-0.5.1.4...
Installed transformers-compat-0.5.1.4
Configuring StateVar-1.1.0.4...
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Configuring async-2.1.1...
Installed StateVar-1.1.0.4
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Configuring vector-0.11.0.0...
Installed async-2.1.1
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Configuring stm-chans-3.0.0.4...
Installed text-1.2.2.1
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Configuring hashable-1.2.4.0...
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Configuring say-0.1.0.0...
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Configuring safe-exceptions-0.1.4.0...
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Configuring chunked-data-0.3.0...
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Configuring vector-algorithms-0.7.0.1...
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Configuring monad-control-1.0.1.0...
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Configuring constraints-0.8...
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Configuring unordered-containers-0.2.7.1...
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Configuring ReadArgs-1.2.3...
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Configuring mono-traversable-1.0.1...
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Configuring comonad-5...
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Configuring profunctors-5.2...
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Configuring free-4.12.4...
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Configuring pointed-5...
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Installed vector-instances-3.3.1
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Installed classy-prelude-1.0.2
Configuring neat-interpolation-0.1.0...
Building neat-interpolation-0.1.0...
Failed to install neat-interpolation-0.1.0
Build log ( /home/builder/.cabal/logs/neat-interpolation-0.1.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-18166/neat-interpolation-0.1.0'
Configuring neat-interpolation-0.1.0...
Building neat-interpolation-0.1.0...
Preprocessing library neat-interpolation-0.1.0...
[1 of 3] Compiling NeatInterpolation.String ( src/NeatInterpolation/String.hs, dist/build/NeatInterpolation/String.o )

src/NeatInterpolation/String.hs:30:18: error:
    Ambiguous occurrence ‘foldr’
    It could refer to either ‘ClassyPrelude.foldr’,
                             imported from ‘ClassyPrelude’ at src/NeatInterpolation/String.hs:5:1-20
                             (and originally defined in ‘mono-traversable-1.0.1:Data.MonoTraversable.Unprefixed’)
                          or ‘Data.Foldable.foldr’,
                             imported from ‘Data.Foldable’ at src/NeatInterpolation/String.hs:7:23-27
cabal: Leaving directory '/tmp/cabal-tmp-18166/neat-interpolation-0.1.0'
cabal: Error: some packages failed to install:
neat-interpolation-0.1.0 failed during the building phase. The exception was:
ExitFailure 1