Resolving dependencies...
Configuring mtl-2.2.1...
Configuring network-2.6.3.1...
Building mtl-2.2.1...
Building network-2.6.3.1...
Installed mtl-2.2.1
Configuring syb-0.6...
Building syb-0.6...
Configuring text-1.2.2.1...
Installed syb-0.6
Building text-1.2.2.1...
Configuring vcs-revision-0.0.2...
Installed network-2.6.3.1
Building vcs-revision-0.0.2...
Configuring regex-base-0.93.2...
Installed vcs-revision-0.0.2
Building regex-base-0.93.2...
Installed regex-base-0.93.2
Configuring regex-posix-0.95.2...
Building regex-posix-0.95.2...
Installed regex-posix-0.95.2
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Configuring tagsoup-0.14...
Building parsec-3.1.11...
Building tagsoup-0.14...
Installed parsec-3.1.11
Configuring network-uri-2.6.1.0...
Building network-uri-2.6.1.0...
Configuring json-0.9.1...
Installed network-uri-2.6.1.0
Building json-0.9.1...
Installed tagsoup-0.14
Configuring HTTP-4000.3.3...
Building HTTP-4000.3.3...
Installed json-0.9.1
Installed HTTP-4000.3.3
Downloading imagepaste-0.2.0.1...
Configuring imagepaste-0.2.0.1...
Building imagepaste-0.2.0.1...
Failed to install imagepaste-0.2.0.1
Build log ( /home/builder/.cabal/logs/imagepaste-0.2.0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-28725/imagepaste-0.2.0.1'
Configuring imagepaste-0.2.0.1...
Building imagepaste-0.2.0.1...
Preprocessing executable 'imagepaste' for imagepaste-0.2.0.1...
[ 1 of 21] Compiling Tools            ( src/Tools.hs, dist/build/imagepaste/imagepaste-tmp/Tools.o )
[ 2 of 21] Compiling Processing       ( src/Processing.hs, dist/build/imagepaste/imagepaste-tmp/Processing.o )

src/Processing.hs:24:7: error:
    • Non type-variable argument
        in the constraint: RegexContext Regex source1 target
      (Use FlexibleContexts to permit this)
    • When checking the inferred type
        isPicture :: forall target source1.
                     RegexContext Regex source1 target =>
                     source1 -> target
      In the expression:
        let
          tags = parseTags r :: [Tag String]
          links = getAttrs tags tag attr
          isPicture x = (x =~ regexp)
          ....
        in urls
      In an equation for ‘extractLinks’:
          extractLinks r tag attr regexp
            = let
                tags = ...
                links = getAttrs tags tag attr
                ....
              in urls
cabal: Leaving directory '/tmp/cabal-tmp-28725/imagepaste-0.2.0.1'
cabal: Error: some packages failed to install:
imagepaste-0.2.0.1 failed during the building phase. The exception was:
ExitFailure 1