Resolving dependencies... Configuring call-stack-0.1.0... Configuring data-default-class-0.1.2.0... Building call-stack-0.1.0... Building data-default-class-0.1.2.0... Installed call-stack-0.1.0 Configuring dlist-0.8.0.2... Installed data-default-class-0.1.2.0 Configuring mtl-2.2.1... Building dlist-0.8.0.2... 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 network-2.6.3.1... Installed mtl-2.2.1 Configuring stm-2.4.4.1... Installed old-locale-1.0.0.7 Building stm-2.4.4.1... Building network-2.6.3.1... Configuring utf8-string-1.0.1.1... Installed stm-2.4.4.1 Building utf8-string-1.0.1.1... Configuring text-1.2.2.1... Installed utf8-string-1.0.1.1 Building text-1.2.2.1... Configuring transformers-compat-0.5.1.4... Installed network-2.6.3.1 Building transformers-compat-0.5.1.4... Installed transformers-compat-0.5.1.4 Configuring HUnit-1.5.0.0... Building HUnit-1.5.0.0... Installed HUnit-1.5.0.0 Configuring data-default-instances-containers-0.0.1... Building data-default-instances-containers-0.0.1... Configuring data-default-instances-dlist-0.0.1... Installed data-default-instances-containers-0.0.1 Building data-default-instances-dlist-0.0.1... Configuring mtlparse-0.1.4.0... Installed data-default-instances-dlist-0.0.1 Building mtlparse-0.1.4.0... Configuring old-time-1.1.0.3... Installed mtlparse-0.1.4.0 Building old-time-1.1.0.3... Configuring exceptions-0.8.3... Installed text-1.2.2.1 Building exceptions-0.8.3... Configuring data-default-instances-old-locale-0.0.1... Installed old-time-1.1.0.3 Building data-default-instances-old-locale-0.0.1... Installed exceptions-0.8.3 Configuring regexpr-0.5.4... Building regexpr-0.5.4... Configuring air-2015.5.4... Installed data-default-instances-old-locale-0.0.1 Building air-2015.5.4... Configuring parsec-3.1.11... Installed regexpr-0.5.4 Building parsec-3.1.11... Configuring data-default-0.7.1.1... Installed air-2015.5.4 Building data-default-0.7.1.1... Installed data-default-0.7.1.1 Configuring hack2-2014.11.17... Building hack2-2014.11.17... Installed parsec-3.1.11 Configuring network-uri-2.6.1.0... Configuring multipart-0.1.2... Installed hack2-2014.11.17 Building network-uri-2.6.1.0... Building multipart-0.1.2... Installed multipart-0.1.2 Installed network-uri-2.6.1.0 Configuring cgi-3001.3.0.2... Building cgi-3001.3.0.2... Installed cgi-3001.3.0.2 Configuring hack2-contrib-2013.6.15... Building hack2-contrib-2013.6.15... Failed to install hack2-contrib-2013.6.15 Build log ( /home/builder/.cabal/logs/hack2-contrib-2013.6.15.log ): cabal: Entering directory '/tmp/cabal-tmp-6019/hack2-contrib-2013.6.15' Warning: hack2-contrib.cabal: Unknown fields: build-depends (line 10) 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 hack2-contrib-2013.6.15... Building hack2-contrib-2013.6.15... Preprocessing library hack2-contrib-2013.6.15... [ 1 of 24] Compiling Hack2.Contrib.Mime ( src/Hack2/Contrib/Mime.hs, dist/build/Hack2/Contrib/Mime.o ) [ 2 of 24] Compiling Hack2.Contrib.Middleware.XForwardedForToRemoteHost ( src/Hack2/Contrib/Middleware/XForwardedForToRemoteHost.hs, dist/build/Hack2/Contrib/Middleware/XForwardedForToRemoteHost.o ) [ 3 of 24] Compiling Hack2.Contrib.Middleware.Inspect ( src/Hack2/Contrib/Middleware/Inspect.hs, dist/build/Hack2/Contrib/Middleware/Inspect.o ) [ 4 of 24] Compiling Hack2.Contrib.Middleware.IOConfig ( src/Hack2/Contrib/Middleware/IOConfig.hs, dist/build/Hack2/Contrib/Middleware/IOConfig.o ) [ 5 of 24] Compiling Hack2.Contrib.Middleware.Debug ( src/Hack2/Contrib/Middleware/Debug.hs, dist/build/Hack2/Contrib/Middleware/Debug.o ) [ 6 of 24] Compiling Hack2.Contrib.Middleware.Config ( src/Hack2/Contrib/Middleware/Config.hs, dist/build/Hack2/Contrib/Middleware/Config.o ) [ 7 of 24] Compiling Hack2.Contrib.Middleware.Censor ( src/Hack2/Contrib/Middleware/Censor.hs, dist/build/Hack2/Contrib/Middleware/Censor.o ) [ 8 of 24] Compiling Hack2.Contrib.Middleware.Cascade ( src/Hack2/Contrib/Middleware/Cascade.hs, dist/build/Hack2/Contrib/Middleware/Cascade.o ) [ 9 of 24] Compiling Hack2.Contrib.Constants ( src/Hack2/Contrib/Constants.hs, dist/build/Hack2/Contrib/Constants.o ) [10 of 24] Compiling Hack2.Contrib.AirBackports ( src/Hack2/Contrib/AirBackports.hs, dist/build/Hack2/Contrib/AirBackports.o ) src/Hack2/Contrib/AirBackports.hs:33:26: error: Ambiguous occurrence ‘defaultTimeLocale’ It could refer to either ‘Data.Time.defaultTimeLocale’, imported from ‘Data.Time’ at src/Hack2/Contrib/AirBackports.hs:4:1-16 (and originally defined in ‘time-1.6.0.1:Data.Time.Format.Locale’) or ‘System.Locale.defaultTimeLocale’, imported from ‘System.Locale’ at src/Hack2/Contrib/AirBackports.hs:8:23-39 src/Hack2/Contrib/AirBackports.hs:42:23: error: Ambiguous occurrence ‘defaultTimeLocale’ It could refer to either ‘Data.Time.defaultTimeLocale’, imported from ‘Data.Time’ at src/Hack2/Contrib/AirBackports.hs:4:1-16 (and originally defined in ‘time-1.6.0.1:Data.Time.Format.Locale’) or ‘System.Locale.defaultTimeLocale’, imported from ‘System.Locale’ at src/Hack2/Contrib/AirBackports.hs:8:23-39 cabal: Leaving directory '/tmp/cabal-tmp-6019/hack2-contrib-2013.6.15' cabal: Error: some packages failed to install: hack2-contrib-2013.6.15 failed during the building phase. The exception was: ExitFailure 1