Resolving dependencies...
Downloading tokyocabinet-haskell-0.0.1...
Configuring tokyocabinet-haskell-0.0.1...
Building tokyocabinet-haskell-0.0.1...
Preprocessing library tokyocabinet-haskell-0.0.1...

Database/TokyoCabinet/List/C.hs:1:12: Warning:
    -#include and INCLUDE pragmas are deprecated: They no longer have any effect
[ 1 of 15] Compiling Database.TokyoCabinet.List.C ( Database/TokyoCabinet/List/C.hs, dist/build/Database/TokyoCabinet/List/C.o )
[ 2 of 15] Compiling Database.TokyoCabinet.BDB.C ( dist/build/Database/TokyoCabinet/BDB/C.hs, dist/build/Database/TokyoCabinet/BDB/C.o )
[ 3 of 15] Compiling Database.TokyoCabinet.BDB.Cursor.C ( dist/build/Database/TokyoCabinet/BDB/Cursor/C.hs, dist/build/Database/TokyoCabinet/BDB/Cursor/C.o )
[ 4 of 15] Compiling Database.TokyoCabinet.FDB.C ( dist/build/Database/TokyoCabinet/FDB/C.hs, dist/build/Database/TokyoCabinet/FDB/C.o )
[ 5 of 15] Compiling Database.TokyoCabinet.HDB.C ( dist/build/Database/TokyoCabinet/HDB/C.hs, dist/build/Database/TokyoCabinet/HDB/C.o )
[ 6 of 15] Compiling Database.TokyoCabinet.Error ( dist/build/Database/TokyoCabinet/Error.hs, dist/build/Database/TokyoCabinet/Error.o )

Database/TokyoCabinet/Error.hsc:109:10: Warning:
    In the use of `unsafePerformIO' (imported from Foreign):
    Deprecated: "Use System.IO.Unsafe.unsafePerformIO instead; This function will be removed in the next release"
[ 7 of 15] Compiling Database.TokyoCabinet.FDB.Key ( Database/TokyoCabinet/FDB/Key.hs, dist/build/Database/TokyoCabinet/FDB/Key.o )

Database/TokyoCabinet/FDB/Key.hs:53:10:
    Illegal instance declaration for `Key String'
      (All instance types must be of the form (T a1 ... an)
       where a1 ... an are *distinct type variables*,
       and each type variable appears at most once in the instance head.
       Use -XFlexibleInstances if you want to disable this.)
    In the instance declaration for `Key String'
Failed to install tokyocabinet-haskell-0.0.1
cabal: Error: some packages failed to install:
tokyocabinet-haskell-0.0.1 failed during the building phase. The exception
was:
ExitFailure 1