Resolving dependencies...
Configuring base-orphans-0.5.4...
Configuring mtl-2.2.1...
Building base-orphans-0.5.4...
Building mtl-2.2.1...
Installed base-orphans-0.5.4
Configuring semigroups-0.18.2...
Building semigroups-0.18.2...
Configuring stm-2.4.4.1...
Installed semigroups-0.18.2
Building stm-2.4.4.1...
Configuring text-1.2.2.1...
Installed mtl-2.2.1
Building text-1.2.2.1...
Configuring transformers-compat-0.5.1.4...
Installed stm-2.4.4.1
Building transformers-compat-0.5.1.4...
Configuring StateVar-1.1.0.4...
Installed transformers-compat-0.5.1.4
Building StateVar-1.1.0.4...
Configuring tagged-0.8.5...
Installed StateVar-1.1.0.4
Building tagged-0.8.5...
Installed tagged-0.8.5
Configuring distributive-0.5.0.2...
Building distributive-0.5.0.2...
Installed text-1.2.2.1
Configuring hashable-1.2.4.0...
Installed distributive-0.5.0.2
Building hashable-1.2.4.0...
Installed hashable-1.2.4.0
Configuring void-0.7.1...
Building void-0.7.1...
Installed void-0.7.1
Configuring contravariant-1.4...
Building contravariant-1.4...
Installed contravariant-1.4
Configuring comonad-5...
Building comonad-5...
Installed comonad-5
Configuring bifunctors-5.4.1...
Building bifunctors-5.4.1...
Installed bifunctors-5.4.1
Configuring semigroupoids-5.1...
Building semigroupoids-5.1...
Installed semigroupoids-5.1
Configuring data-lens-2.11.1...
Building data-lens-2.11.1...
Installed data-lens-2.11.1
Configuring data-lens-template-2.2...
Building data-lens-template-2.2...
Installed data-lens-template-2.2
Configuring graph-visit-0.1.0.2...
Building graph-visit-0.1.0.2...
Installed graph-visit-0.1.0.2
Configuring macosx-make-standalone-0.1.0.1...
Building macosx-make-standalone-0.1.0.1...
Failed to install macosx-make-standalone-0.1.0.1
Build log ( /home/builder/.cabal/logs/macosx-make-standalone-0.1.0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-27658/macosx-make-standalone-0.1.0.1'
Configuring macosx-make-standalone-0.1.0.1...
Building macosx-make-standalone-0.1.0.1...
Preprocessing executable 'macosx-make-standalone' for
macosx-make-standalone-0.1.0.1...
[1 of 6] Compiling Opts             ( src/Opts.hs, dist/build/macosx-make-standalone/macosx-make-standalone-tmp/Opts.o )

src/Opts.hs:12:22: warning: [-Wtabs]
    Tab character found here, and in 144 further locations.
    Please use spaces instead.
[2 of 6] Compiling State            ( src/State.hs, dist/build/macosx-make-standalone/macosx-make-standalone-tmp/State.o )

src/State.hs:45:12: warning: [-Wtabs]
    Tab character found here, and in 11 further locations.
    Please use spaces instead.
[3 of 6] Compiling Cmds             ( src/Cmds.hs, dist/build/macosx-make-standalone/macosx-make-standalone-tmp/Cmds.o )

src/Cmds.hs:78:11: warning: [-Wtabs]
    Tab character found here, and in four further locations.
    Please use spaces instead.
[4 of 6] Compiling LibDepGraph      ( src/LibDepGraph.hs, dist/build/macosx-make-standalone/macosx-make-standalone-tmp/LibDepGraph.o )

src/LibDepGraph.hs:52:14: warning: [-Wtabs]
    Tab character found here, and in four further locations.
    Please use spaces instead.
[5 of 6] Compiling Plan             ( src/Plan.hs, dist/build/macosx-make-standalone/macosx-make-standalone-tmp/Plan.o )
[6 of 6] Compiling Main             ( src/MakeStandalone.hs, dist/build/macosx-make-standalone/macosx-make-standalone-tmp/Main.o )

src/MakeStandalone.hs:181:6: error:
    Ambiguous occurrence ‘isSymbolicLink’
    It could refer to either ‘System.Directory.isSymbolicLink’,
                             imported from ‘System.Directory’ at src/MakeStandalone.hs:25:1-33
                          or ‘System.Posix.Files.isSymbolicLink’,
                             imported from ‘System.Posix.Files’ at src/MakeStandalone.hs:29:1-35
                             (and originally defined in ‘unix-2.7.2.0:System.Posix.Files.Common’)
cabal: Leaving directory '/tmp/cabal-tmp-27658/macosx-make-standalone-0.1.0.1'
cabal: Error: some packages failed to install:
macosx-make-standalone-0.1.0.1 failed during the building phase. The exception
was:
ExitFailure 1