Resolving dependencies...
Configuring mtl-2.2.1...
Configuring SHA-1.6.4.2...
Building mtl-2.2.1...
Building SHA-1.6.4.2...
Installed mtl-2.2.1
Configuring network-2.6.3.1...
Building network-2.6.3.1...
Configuring old-locale-1.0.0.7...
Installed SHA-1.6.4.2
Building old-locale-1.0.0.7...
Configuring network-info-0.2.0.8...
Installed old-locale-1.0.0.7
Building network-info-0.2.0.8...
Configuring random-1.1...
Installed network-info-0.2.0.8
Building random-1.1...
Configuring stm-2.4.4.1...
Installed network-2.6.3.1
Building stm-2.4.4.1...
Configuring primitive-0.6.1.0...
Installed random-1.1
Configuring stringsearch-0.3.6.6...
Installed stm-2.4.4.1
Building primitive-0.6.1.0...
Building stringsearch-0.3.6.6...
Configuring text-1.2.2.1...
Installed primitive-0.6.1.0
Building text-1.2.2.1...
Installed stringsearch-0.3.6.6
Configuring old-time-1.1.0.3...
Building old-time-1.1.0.3...
Configuring vector-0.11.0.0...
Installed old-time-1.1.0.3
Building vector-0.11.0.0...
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Building parsec-3.1.11...
Configuring hashable-1.2.4.0...
Installed parsec-3.1.11
Building hashable-1.2.4.0...
Configuring network-uri-2.6.1.0...
Installed hashable-1.2.4.0
Building network-uri-2.6.1.0...
Installed vector-0.11.0.0
Configuring hashtables-1.2.1.0...
Installed network-uri-2.6.1.0
Configuring HTTP-4000.3.3...
Building hashtables-1.2.1.0...
Building HTTP-4000.3.3...
Installed hashtables-1.2.1.0
Configuring RefSerialize-0.3.1.4...
Building RefSerialize-0.3.1.4...
Installed HTTP-4000.3.3
Installed RefSerialize-0.3.1.4
Configuring TCache-0.12.0...
Building TCache-0.12.0...
Installed TCache-0.12.0
Downloading transient-0.1.0.9...
Configuring transient-0.1.0.9...
Building transient-0.1.0.9...
Failed to install transient-0.1.0.9
Build log ( /home/builder/.cabal/logs/transient-0.1.0.9.log ):
cabal: Entering directory '/tmp/cabal-tmp-22901/transient-0.1.0.9'
Configuring transient-0.1.0.9...
Building transient-0.1.0.9...
Preprocessing library transient-0.1.0.9...
[1 of 9] Compiling Transient.Base   ( src/Transient/Base.hs, dist/build/Transient/Base.o )
[2 of 9] Compiling Transient.EVars  ( src/Transient/EVars.hs, dist/build/Transient/EVars.o )
[3 of 9] Compiling Transient.Indeterminism ( src/Transient/Indeterminism.hs, dist/build/Transient/Indeterminism.o )
[4 of 9] Compiling Transient.Logged ( src/Transient/Logged.hs, dist/build/Transient/Logged.o )

src/Transient/Logged.hs:28:10: warning: [-Wmissing-methods]
    • No explicit implementation for
        ‘fmap’
    • In the instance declaration for ‘Functor TransLIO’

src/Transient/Logged.hs:31:10: warning: [-Wmissing-methods]
    • No explicit implementation for
        ‘pure’ and ‘<*>’
    • In the instance declaration for ‘Applicative TransLIO’
[5 of 9] Compiling Transient.Move   ( src/Transient/Move.hs, dist/build/Transient/Move.o )

src/Transient/Move.hs:265:10: error:
    Duplicate instance declarations:
      instance Read PortNumber -- Defined at src/Transient/Move.hs:265:10
      instance Read PortNumber
        -- Defined in ‘network-2.6.3.1:Network.Socket.Types’
cabal: Leaving directory '/tmp/cabal-tmp-22901/transient-0.1.0.9'
cabal: Error: some packages failed to install:
transient-0.1.0.9 failed during the building phase. The exception was:
ExitFailure 1