Resolving dependencies...
Configuring hopenssl-1.6.2...
Building hopenssl-1.6.2...
Preprocessing library hopenssl-1.6.2...
[1 of 3] Compiling OpenSSL.Digest   ( OpenSSL/Digest.hs, dist/build/OpenSSL/Digest.o )
[2 of 3] Compiling OpenSSL.Digest.ByteString ( OpenSSL/Digest/ByteString.hs, dist/build/OpenSSL/Digest/ByteString.o )
[3 of 3] Compiling OpenSSL.Digest.ByteString.Lazy ( OpenSSL/Digest/ByteString/Lazy.hs, dist/build/OpenSSL/Digest/ByteString/Lazy.o )
In-place registering hopenssl-1.6.2...
Running Haddock for hopenssl-1.6.2...
Running hscolour for hopenssl-1.6.2...
Preprocessing library hopenssl-1.6.2...
Preprocessing library hopenssl-1.6.2...
Haddock coverage:
  73% ( 24 / 33) in 'OpenSSL.Digest'
 100% (  3 /  3) in 'OpenSSL.Digest.ByteString'
 100% (  3 /  3) in 'OpenSSL.Digest.ByteString.Lazy'
Documentation created: dist/doc/html/hopenssl/index.html
Installing library in
/srv/hackage/var/build/tmp-install/lib/x86_64-linux-ghc-7.6.3/hopenssl-1.6.2
Registering hopenssl-1.6.2...
Installed hopenssl-1.6.2
Configuring hsdns-1.6.1...
Building hsdns-1.6.1...
Preprocessing library hsdns-1.6.1...
[1 of 4] Compiling ADNS.Endian      ( ADNS/Endian.hs, dist/build/ADNS/Endian.o )
[2 of 4] Compiling ADNS.Base        ( dist/build/ADNS/Base.hs, dist/build/ADNS/Base.o )
[3 of 4] Compiling ADNS.Resolver    ( ADNS/Resolver.hs, dist/build/ADNS/Resolver.o )
[4 of 4] Compiling ADNS             ( ADNS.hs, dist/build/ADNS.o )
In-place registering hsdns-1.6.1...
Running Haddock for hsdns-1.6.1...
Running hscolour for hsdns-1.6.1...
Preprocessing library hsdns-1.6.1...
Preprocessing library hsdns-1.6.1...
Haddock coverage:
 100% (  5 /  5) in 'ADNS.Endian'
  36% ( 28 / 77) in 'ADNS.Base'
 100% ( 10 / 10) in 'ADNS.Resolver'
  64% (  7 / 11) in 'ADNS'
Warning: ADNS.Resolver: could not find link destinations for:
    ADNS.Resolver.resolveLoop
Documentation created: dist/doc/html/hsdns/index.html
Installing library in
/srv/hackage/var/build/tmp-install/lib/x86_64-linux-ghc-7.6.3/hsdns-1.6.1
Registering hsdns-1.6.1...
Installed hsdns-1.6.1
Configuring hsemail-1.7.7...
Building hsemail-1.7.7...
Preprocessing library hsemail-1.7.7...
[1 of 3] Compiling Text.ParserCombinators.Parsec.Rfc2234 ( Text/ParserCombinators/Parsec/Rfc2234.hs, dist/build/Text/ParserCombinators/Parsec/Rfc2234.o )
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package array-0.4.0.1 ... linking ... done.
Loading package deepseq-1.3.0.1 ... linking ... done.
Loading package bytestring-0.10.0.2 ... linking ... done.
Loading package transformers-0.3.0.0 ... linking ... done.
Loading package mtl-2.1.2 ... linking ... done.
Loading package text-0.11.2.3 ... linking ... done.
Loading package parsec-3.1.3 ... linking ... done.
Loading package old-locale-1.0.0.5 ... linking ... done.
Loading package old-time-1.1.0.1 ... linking ... done.
[2 of 3] Compiling Text.ParserCombinators.Parsec.Rfc2821 ( Text/ParserCombinators/Parsec/Rfc2821.hs, dist/build/Text/ParserCombinators/Parsec/Rfc2821.o )
[3 of 3] Compiling Text.ParserCombinators.Parsec.Rfc2822 ( Text/ParserCombinators/Parsec/Rfc2822.hs, dist/build/Text/ParserCombinators/Parsec/Rfc2822.o )
In-place registering hsemail-1.7.7...
Running Haddock for hsemail-1.7.7...
Running hscolour for hsemail-1.7.7...
Preprocessing library hsemail-1.7.7...
Preprocessing library hsemail-1.7.7...
Haddock coverage:
 100% ( 26 / 26) in 'Text.ParserCombinators.Parsec.Rfc2234'
  44% ( 27 / 62) in 'Text.ParserCombinators.Parsec.Rfc2821'
  93% (165 /177) in 'Text.ParserCombinators.Parsec.Rfc2822'
Documentation created: dist/doc/html/hsemail/index.html
Installing library in
/srv/hackage/var/build/tmp-install/lib/x86_64-linux-ghc-7.6.3/hsemail-1.7.7
Registering hsemail-1.7.7...
Installed hsemail-1.7.7
Configuring hsyslog-1.6...
Building hsyslog-1.6...
Preprocessing library hsyslog-1.6...
[1 of 1] Compiling System.Posix.Syslog ( dist/build/System/Posix/Syslog.hs, dist/build/System/Posix/Syslog.o )
In-place registering hsyslog-1.6...
Running Haddock for hsyslog-1.6...
Running hscolour for hsyslog-1.6...
Preprocessing library hsyslog-1.6...
Preprocessing library hsyslog-1.6...
Haddock coverage:
  75% ( 12 / 16) in 'System.Posix.Syslog'
Documentation created: dist/doc/html/hsyslog/index.html
Installing library in
/srv/hackage/var/build/tmp-install/lib/x86_64-linux-ghc-7.6.3/hsyslog-1.6
Registering hsyslog-1.6...
Installed hsyslog-1.6
Downloading postmaster-0.2...
Configuring postmaster-0.2...
Building postmaster-0.2...
Preprocessing executable 'postmaster' for postmaster-0.2...

tutorial.lhs:1:1:
    Ambiguous module name `Prelude':
      it was found in multiple packages: base haskell98-2.0.0.2
Failed to install postmaster-0.2
cabal: Error: some packages failed to install:
postmaster-0.2 failed during the building phase. The exception was:
ExitFailure 1