Resolving dependencies...
Configuring data-default-class-0.1.2.0...
Configuring dlist-0.8.0.2...
Building data-default-class-0.1.2.0...
Building dlist-0.8.0.2...
Installed data-default-class-0.1.2.0
Configuring mtl-2.2.1...
Building mtl-2.2.1...
Configuring old-locale-1.0.0.7...
Installed dlist-0.8.0.2
Building old-locale-1.0.0.7...
Configuring utf8-string-1.0.1.1...
Installed old-locale-1.0.0.7
Building utf8-string-1.0.1.1...
Configuring data-default-instances-containers-0.0.1...
Installed mtl-2.2.1
Building data-default-instances-containers-0.0.1...
Configuring text-1.2.2.1...
Installed data-default-instances-containers-0.0.1
Building text-1.2.2.1...
Installed utf8-string-1.0.1.1
Configuring data-default-instances-dlist-0.0.1...
Building data-default-instances-dlist-0.0.1...
Configuring data-default-instances-old-locale-0.0.1...
Installed data-default-instances-dlist-0.0.1
Building data-default-instances-old-locale-0.0.1...
Installed data-default-instances-old-locale-0.0.1
Configuring data-default-0.7.1.1...
Building data-default-0.7.1.1...
Installed data-default-0.7.1.1
Installed text-1.2.2.1
Configuring air-2015.5.4...
Building air-2015.5.4...
Installed air-2015.5.4
Configuring moe-2011.6.11...
Building moe-2011.6.11...
Failed to install moe-2011.6.11
Build log ( /home/builder/.cabal/logs/moe-2011.6.11.log ):
cabal: Entering directory '/tmp/cabal-tmp-3265/moe-2011.6.11'
Warning: moe.cabal: Unknown fields: build-depends (line 13)
Fields allowed in this section:
name, version, cabal-version, build-type, license, license-file,
license-files, copyright, maintainer, stability, homepage,
package-url, bug-reports, synopsis, description, category, author,
tested-with, data-files, data-dir, extra-source-files,
extra-tmp-files, extra-doc-files
Configuring moe-2011.6.11...
Building moe-2011.6.11...
Preprocessing library moe-2011.6.11...
[ 1 of 20] Compiling Text.HTML.Moe.Backend.DList ( src/Text/HTML/Moe/Backend/DList.hs, dist/build/Text/HTML/Moe/Backend/DList.o )

src/Text/HTML/Moe/Backend/DList.hs:12:10: error:
    • Overlapping instances for Show (D.DList Char)
        arising from a use of ‘GHC.Show.$dmshowsPrec’
      Matching instances:
        instance Show a => Show (D.DList a) -- Defined in ‘Data.DList’
        instance Show (D.DList Char)
          -- Defined at src/Text/HTML/Moe/Backend/DList.hs:12:10
    • In the expression: GHC.Show.$dmshowsPrec @D.DList Char
      In an equation for ‘showsPrec’:
          showsPrec = GHC.Show.$dmshowsPrec @D.DList Char
      In the instance declaration for ‘Show (D.DList Char)’

src/Text/HTML/Moe/Backend/DList.hs:12:10: error:
    • Overlapping instances for Show (D.DList Char)
        arising from a use of ‘GHC.Show.$dmshowList’
      Matching instances:
        instance Show a => Show (D.DList a) -- Defined in ‘Data.DList’
        instance Show (D.DList Char)
          -- Defined at src/Text/HTML/Moe/Backend/DList.hs:12:10
    • In the expression: GHC.Show.$dmshowList @D.DList Char
      In an equation for ‘showList’:
          showList = GHC.Show.$dmshowList @D.DList Char
      In the instance declaration for ‘Show (D.DList Char)’
cabal: Leaving directory '/tmp/cabal-tmp-3265/moe-2011.6.11'
cabal: Error: some packages failed to install:
moe-2011.6.11 failed during the building phase. The exception was:
ExitFailure 1