Resolving dependencies...
Configuring ansi-terminal-0.6.2.3...
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Building base-orphans-0.5.4...
Building ansi-terminal-0.6.2.3...
Installed base-orphans-0.5.4
Configuring call-stack-0.1.0...
Building call-stack-0.1.0...
Configuring cereal-0.5.4.0...
Installed ansi-terminal-0.6.2.3
Configuring dlist-0.8.0.2...
Installed call-stack-0.1.0
Building cereal-0.5.4.0...
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Configuring haskell-qrencode-1.0.4...
Installed dlist-0.8.0.2
Building haskell-qrencode-1.0.4...
Configuring fail-4.9.0.0...
Installed haskell-qrencode-1.0.4
Configuring integer-logarithms-1...
Installed cereal-0.5.4.0
Building fail-4.9.0.0...
Building integer-logarithms-1...
Configuring memory-0.14.1...
Installed fail-4.9.0.0
Building memory-0.14.1...
Configuring mtl-2.2.1...
Installed integer-logarithms-1
Building mtl-2.2.1...
Configuring old-locale-1.0.0.7...
Installed mtl-2.2.1
Building old-locale-1.0.0.7...
Configuring parallel-3.2.1.0...
Installed memory-0.14.1
Building parallel-3.2.1.0...
Configuring prelude-extras-0.4.0.3...
Installed old-locale-1.0.0.7
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Configuring primitive-0.6.1.0...
Installed parallel-3.2.1.0
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Configuring random-1.1...
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Configuring network-2.6.3.1...
Installed primitive-0.6.1.0
Configuring semigroups-0.18.2...
Installed random-1.1
Building semigroups-0.18.2...
Building network-2.6.3.1...
Configuring reflection-2.1.2...
Installed semigroups-0.18.2
Building reflection-2.1.2...
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Installed reflection-2.1.2
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Configuring syb-0.6...
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Configuring zlib-0.6.1.2...
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Building zlib-0.6.1.2...
Configuring transformers-compat-0.5.1.4...
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Configuring text-1.2.2.1...
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Configuring ansi-wl-pprint-0.6.7.3...
Building ansi-wl-pprint-0.6.7.3...
Configuring regex-base-0.93.2...
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Configuring optparse-applicative-0.12.1.0...
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Configuring aeson-0.11.3.0...
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Configuring lens-4.14...
Building lens-4.14...
Installed lens-4.14
Configuring qr-imager-0.2.1.3...
Building qr-imager-0.2.1.3...
Failed to install qr-imager-0.2.1.3
Build log ( /home/builder/.cabal/logs/qr-imager-0.2.1.3.log ):
cabal: Entering directory '/tmp/cabal-tmp-13108/qr-imager-0.2.1.3'
Configuring qr-imager-0.2.1.3...
Building qr-imager-0.2.1.3...
Preprocessing library qr-imager-0.2.1.3...
[1 of 5] Compiling Data.QRCodes.Utils ( src/Data/QRCodes/Utils.hs, dist/build/Data/QRCodes/Utils.o )
[2 of 5] Compiling Data.QRCodes.Signature ( src/Data/QRCodes/Signature.hs, dist/build/Data/QRCodes/Signature.o )
[3 of 5] Compiling Data.QRCodes.Image ( src/Data/QRCodes/Image.hs, dist/build/Data/QRCodes/Image.o )
[4 of 5] Compiling Data.QRCodes     ( src/Data/QRCodes.hs, dist/build/Data/QRCodes.o )
[5 of 5] Compiling Data.QRCodes.Exe ( src/Data/QRCodes/Exe.hs, dist/build/Data/QRCodes/Exe.o )
Preprocessing executable 'qrpipe' for qr-imager-0.2.1.3...
[1 of 1] Compiling Main             ( app/Main.hs, dist/build/qrpipe/qrpipe-tmp/Main.o )
You are using an unsupported version of LLVM!
Currently only 3.7 is supported.
We will try though...
opt: /tmp/ghc29328_0/ghc_2.ll:7:6: error: expected type
!0 = !{!"top", null}
     ^
`opt' failed in phase `LLVM Optimiser'. (Exit code: 1)
cabal: Leaving directory '/tmp/cabal-tmp-13108/qr-imager-0.2.1.3'
cabal: Error: some packages failed to install:
qr-imager-0.2.1.3 failed during the building phase. The exception was:
ExitFailure 1