Resolving dependencies...
cabal: Entering directory '/tmp/cabal-tmp-21915/zenc-0.1.1'
Configuring zenc-0.1.1...
Building zenc-0.1.1...
Preprocessing library zenc-0.1.1...
[1 of 1] Compiling Text.Encoding.Z  ( Text/Encoding/Z.hs, dist/build/Text/Encoding/Z.o )
Running Haddock for zenc-0.1.1...
Running hscolour for zenc-0.1.1...
Preprocessing library zenc-0.1.1...
Preprocessing library zenc-0.1.1...
Haddock coverage:
  20% (  1 /  5) in 'Text.Encoding.Z'
  Missing documentation for:
    zEncodeString (Text/Encoding/Z.hs:58)
    zDecodeString (Text/Encoding/Z.hs:122)
    UserString (Text/Encoding/Z.hs:54)
    EncodedString (Text/Encoding/Z.hs:55)
Documentation created: dist/doc/html/zenc/index.html,
dist/doc/html/zenc/zenc.txt
Creating package registration file: /tmp/pkgConf-zenc-0.12145174067468703135.1
Installing library in
/home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-8.0.1.20160521/zenc-0.1.1-Gl7VuFENKIgE1RtNgcy2OI
Registering zenc-0.1.1...
cabal: Leaving directory '/tmp/cabal-tmp-21915/zenc-0.1.1'
Installed zenc-0.1.1
Downloading rts-loader-0.0.0.3...
cabal: Entering directory '/tmp/cabal-tmp-21915/rts-loader-0.0.0.3'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-21915/rts-loader-0.0.0.3/dist/setup/setup.hs, /tmp/cabal-tmp-21915/rts-loader-0.0.0.3/dist/setup/Main.o )
Linking /tmp/cabal-tmp-21915/rts-loader-0.0.0.3/dist/setup/setup ...
Configuring rts-loader-0.0.0.3...
/tmp/ccxvjMIY.o: In function `loader':
rts-loader.c:(.text+0x662): undefined reference to `dlopen'
rts-loader.c:(.text+0x672): undefined reference to `dlerror'
/tmp/ccxvjMIY.o: In function `main':
rts-loader.c:(.text+0x7ff): undefined reference to `dlsym'
rts-loader.c:(.text+0x843): undefined reference to `dlsym'
rts-loader.c:(.text+0x8fd): undefined reference to `dlsym'
collect2: error: ld returned 1 exit status
cabal: Leaving directory '/tmp/cabal-tmp-21915/rts-loader-0.0.0.3'
Failed to install rts-loader-0.0.0.3
cabal: Error: some packages failed to install:
rts-loader-0.0.0.3 failed during the building phase. The exception was:
ExitFailure 1