Resolving dependencies...
Configuring old-locale-1.0.0.7...
Building old-locale-1.0.0.7...
Preprocessing library old-locale-1.0.0.7...
[1 of 1] Compiling System.Locale    ( System/Locale.hs, dist/build/System/Locale.o )
In-place registering old-locale-1.0.0.7...
Running Haddock for old-locale-1.0.0.7...
Running hscolour for old-locale-1.0.0.7...
Preprocessing library old-locale-1.0.0.7...
Preprocessing library old-locale-1.0.0.7...
Haddock coverage:
  60% (  3 /  5) in 'System.Locale'
  Missing documentation for:
    TimeLocale (System/Locale.hs:36)
    defaultTimeLocale (System/Locale.hs:49)
Documentation created: dist/doc/html/old-locale/index.html,
dist/doc/html/old-locale/old-locale.txt
Creating package registration file:
/tmp/pkgConf-old-locale-1.0.0278722862233665123.7
Installing library in
/home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.2/old-locale-1.0.0.7-D6X1KPq5Sui5XjrHMwvFwK
Registering old-locale-1.0.0.7...
Installed old-locale-1.0.0.7
Configuring rfc3339-1.0.2...
Building rfc3339-1.0.2...
Preprocessing library rfc3339-1.0.2...
[1 of 1] Compiling Data.Time.RFC3339 ( Data/Time/RFC3339.hs, dist/build/Data/Time/RFC3339.o )

Data/Time/RFC3339.hs:45:16:
    Ambiguous occurrence ‘defaultTimeLocale’
    It could refer to either ‘Data.Time.Format.defaultTimeLocale’,
                             imported from ‘Data.Time.Format’ at Data/Time/RFC3339.hs:19:1-23
                             (and originally defined in ‘time-1.5.0.1:Data.Time.Format.Locale’)
                          or ‘System.Locale.defaultTimeLocale’,
                             imported from ‘System.Locale’ at Data/Time/RFC3339.hs:23:1-20

Data/Time/RFC3339.hs:58:25:
    Ambiguous occurrence ‘defaultTimeLocale’
    It could refer to either ‘Data.Time.Format.defaultTimeLocale’,
                             imported from ‘Data.Time.Format’ at Data/Time/RFC3339.hs:19:1-23
                             (and originally defined in ‘time-1.5.0.1:Data.Time.Format.Locale’)
                          or ‘System.Locale.defaultTimeLocale’,
                             imported from ‘System.Locale’ at Data/Time/RFC3339.hs:23:1-20
Failed to install rfc3339-1.0.2
cabal: Error: some packages failed to install:
rfc3339-1.0.2 failed during the building phase. The exception was:
ExitFailure 1