Resolving dependencies...
Configuring Decimal-0.4.2...
Configuring ansi-terminal-0.6.2.3...
Building ansi-terminal-0.6.2.3...
Building Decimal-0.4.2...
Installed Decimal-0.4.2
Configuring base-compat-0.9.1...
Building base-compat-0.9.1...
Configuring base-orphans-0.5.4...
Installed ansi-terminal-0.6.2.3
Building base-orphans-0.5.4...
Configuring dlist-0.8.0.2...
Installed base-orphans-0.5.4
Building dlist-0.8.0.2...
Configuring fgl-5.5.3.0...
Installed base-compat-0.9.1
Building fgl-5.5.3.0...
Configuring mtl-2.2.1...
Installed dlist-0.8.0.2
Building mtl-2.2.1...
Configuring multiset-0.3.3...
Installed mtl-2.2.1
Building multiset-0.3.3...
Configuring old-locale-1.0.0.7...
Installed fgl-5.5.3.0
Building old-locale-1.0.0.7...
Configuring prelude-extras-0.4.0.3...
Installed multiset-0.3.3
Building prelude-extras-0.4.0.3...
Configuring primitive-0.6.1.0...
Installed old-locale-1.0.0.7
Building primitive-0.6.1.0...
Configuring random-1.1...
Installed prelude-extras-0.4.0.3
Building random-1.1...
Configuring safe-0.3.10...
Installed primitive-0.6.1.0
Building safe-0.3.10...
Configuring set-monad-0.2.0.0...
Installed random-1.1
Configuring stm-2.4.4.1...
Installed safe-0.3.10
Building set-monad-0.2.0.0...
Building stm-2.4.4.1...
Configuring semigroups-0.18.2...
Installed set-monad-0.2.0.0
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
Configuring transformers-compat-0.5.1.4...
Installed time-locale-compat-0.1.1.3
Building text-1.2.2.1...
Building transformers-compat-0.5.1.4...
Configuring unexceptionalio-0.3.0...
Installed transformers-compat-0.5.1.4
Building unexceptionalio-0.3.0...
Configuring utf8-string-1.0.1.1...
Installed unexceptionalio-0.3.0
Building utf8-string-1.0.1.1...
Installed utf8-string-1.0.1.1
Configuring ansi-wl-pprint-0.6.7.3...
Building ansi-wl-pprint-0.6.7.3...
Configuring old-time-1.1.0.3...
Installed ansi-wl-pprint-0.6.7.3
Building old-time-1.1.0.3...
Configuring kure-2.16.12...
Installed text-1.2.2.1
Building kure-2.16.12...
Configuring StateVar-1.1.0.4...
Installed old-time-1.1.0.3
Building StateVar-1.1.0.4...
Configuring MonadRandom-0.4.2.3...
Installed StateVar-1.1.0.4
Building MonadRandom-0.4.2.3...
Configuring exceptions-0.8.3...
Installed kure-2.16.12
Building exceptions-0.8.3...
Configuring mmorph-1.0.9...
Installed MonadRandom-0.4.2.3
Building mmorph-1.0.9...
Configuring vector-0.11.0.0...
Installed exceptions-0.8.3
Configuring tagged-0.8.5...
Installed mmorph-1.0.9
Building vector-0.11.0.0...
Building tagged-0.8.5...
Configuring transformers-base-0.4.4...
Installed tagged-0.8.5
Building transformers-base-0.4.4...
Configuring errors-2.1.3...
Installed transformers-base-0.4.4
Building errors-2.1.3...
Installed errors-2.1.3
Configuring hashable-1.2.4.0...
Building hashable-1.2.4.0...
Configuring convertible-1.1.1.0...
Installed hashable-1.2.4.0
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Configuring parsec-3.1.11...
Installed convertible-1.1.1.0
Building parsec-3.1.11...
Configuring monad-control-1.0.1.0...
Installed vector-0.11.0.0
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Configuring distributive-0.5.0.2...
Installed monad-control-1.0.1.0
Installed parsec-3.1.11
Configuring unordered-containers-0.2.7.1...
Building distributive-0.5.0.2...
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Configuring scientific-0.3.4.9...
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Building scientific-0.3.4.9...
Configuring HDBC-2.4.0.1...
Installed scientific-0.3.4.9
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Configuring void-0.7.1...
Installed unordered-containers-0.2.7.1
Building void-0.7.1...
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Configuring attoparsec-0.13.1.0...
Building attoparsec-0.13.1.0...
Installed HDBC-2.4.0.1
Configuring contravariant-1.4...
Building contravariant-1.4...
Configuring HDBC-postgresql-2.3.2.4...
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Configuring comonad-5...
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Building HDBC-postgresql-2.3.2.4...
Building comonad-5...
Installed HDBC-postgresql-2.3.2.4
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Installed comonad-5
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Building bifunctors-5.4.1...
Installed bifunctors-5.4.1
Configuring profunctors-5.2...
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Installed aeson-1.0.2.1
Configuring algebra-dag-0.1.1.1...
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Installed algebra-dag-0.1.1.1
Configuring algebra-sql-0.3.0.0...
Building algebra-sql-0.3.0.0...
Installed semigroupoids-5.1
Configuring free-4.12.4...
Failed to install algebra-sql-0.3.0.0
Build log ( /home/builder/.cabal/logs/algebra-sql-0.3.0.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-1434/algebra-sql-0.3.0.0'
Configuring algebra-sql-0.3.0.0...
Building algebra-sql-0.3.0.0...
Preprocessing library algebra-sql-0.3.0.0...
[ 1 of 22] Compiling Database.Algebra.Table.Lang ( src/Database/Algebra/Table/Lang.hs, dist/build/Database/Algebra/Table/Lang.o )

src/Database/Algebra/Table/Lang.hs:350:10: error:
    Duplicate instance declarations:
      instance FromJSON C.Day
        -- Defined at src/Database/Algebra/Table/Lang.hs:350:10
      instance FromJSON C.Day
        -- Defined in ‘aeson-1.0.2.1:Data.Aeson.Types.FromJSON’

src/Database/Algebra/Table/Lang.hs:353:10: error:
    Duplicate instance declarations:
      instance ToJSON C.Day
        -- Defined at src/Database/Algebra/Table/Lang.hs:353:10
      instance ToJSON C.Day
        -- Defined in ‘aeson-1.0.2.1:Data.Aeson.Types.ToJSON’
cabal: Leaving directory '/tmp/cabal-tmp-1434/algebra-sql-0.3.0.0'
Building free-4.12.4...
Installed free-4.12.4
Configuring either-4.4.1.1...
Building either-4.4.1.1...
Installed either-4.4.1.1
cabal: Error: some packages failed to install:
DSH-0.10.0.1 depends on algebra-sql-0.3.0.0 which failed to install.
algebra-sql-0.3.0.0 failed during the building phase. The exception was:
ExitFailure 1