Configuring wai-session-0.1...
Dependency StateVar ==1.0.0.0: using StateVar-1.0.0.0
Dependency base ==4.6.0.1: using base-4.6.0.1
Dependency blaze-builder ==0.3.1.1: using blaze-builder-0.3.1.1
Dependency bytestring ==0.10.0.2: using bytestring-0.10.0.2
Dependency containers ==0.5.0.0: using containers-0.5.0.0
Dependency cookie ==0.4.0.1: using cookie-0.4.0.1
Dependency http-types ==0.8.1: using http-types-0.8.1
Dependency time ==1.4.0.1: using time-1.4.0.1
Dependency transformers ==0.3.0.0: using transformers-0.3.0.0
Dependency vault ==0.3.0.2: using vault-0.3.0.2
Dependency wai ==1.4.0.2: using wai-1.4.0.2
Using Cabal-1.16.0.3 compiled by ghc-7.6
Using compiler: ghc-7.6.3
Using install prefix: /srv/hackage/var/build/cache/inst
Binaries installed in: /srv/hackage/var/build/cache/inst/bin
Libraries installed in:
/srv/hackage/var/build/cache/inst/lib/wai-session-0.1/ghc-7.6.3
Private binaries installed in: /srv/hackage/var/build/cache/inst/libexec
Data files installed in:
/srv/hackage/var/build/cache/inst/share/wai-session-0.1
Documentation installed in:
/srv/hackage/var/build/cache/inst/share/doc/wai-session-0.1
Using alex version 3.0.1 found on system at: /usr/bin/alex
Using ar found on system at: /usr/bin/ar
No c2hs found
No cpphs found
No ffihugs found
Using gcc version 4.7 found on system at: /usr/bin/gcc
Using ghc version 7.6.3 found on system at: /usr/local/bin/ghc
Using ghc-pkg version 7.6.3 found on system at: /usr/local/bin/ghc-pkg
No greencard found
Using haddock version 2.13.2 found on system at: /usr/local/bin/haddock
Using happy version 1.18.9 found on system at: /usr/bin/happy
No hmake found
Using hpc version 0.6 found on system at: /usr/local/bin/hpc
Using hsc2hs version 0.67 found on system at: /usr/local/bin/hsc2hs
Using hscolour version 1.19 found on system at: /usr/bin/HsColour
No hugs found
No jhc found
Using ld found on system at: /usr/bin/ld
No lhc found
No lhc-pkg found
No nhc98 found
No pkg-config found
Using ranlib found on system at: /usr/bin/ranlib
Using strip found on system at: /usr/bin/strip
Using tar found on system at: /bin/tar
No uhc found
creating dist/build
creating dist/build/autogen
Building wai-session-0.1...
Preprocessing library wai-session-0.1...
Building library...
creating dist/build
/usr/local/bin/ghc --make -fbuilding-cabal-package -odir dist/build -hidir dist/build -stubdir dist/build -i -idist/build -i. -idist/build/autogen -Idist/build/autogen -Idist/build -optP-include -optPdist/build/autogen/cabal_macros.h -package-name wai-session-0.1 -hide-all-packages -package-db /srv/hackage/var/build/cache/inst/local.conf.d -package-db dist/package.conf.inplace -package-id StateVar-1.0.0.0-682271ec7eabdffb4efa651c044fc3bf -package-id base-4.6.0.1-8aa5d403c45ea59dcd2c39f123e27d57 -package-id blaze-builder-0.3.1.1-119fa57d5390d0ab9030f3ef8d7f7334 -package-id bytestring-0.10.0.2-4f93248f75667c2c3321a7a6761b576f -package-id containers-0.5.0.0-ab1dae9a94cd3cc84e7b2805636ebfa2 -package-id cookie-0.4.0.1-6602eafc2444d7df2257d89ce1bafaf6 -package-id http-types-0.8.1-77fc1fa4f963097142d78f9d46a533e2 -package-id time-1.4.0.1-10dc4804a19dc0000fab79908f1a9f50 -package-id transformers-0.3.0.0-ff2bb6ac67241ebb987351a3db564af0 -package-id vault-0.3.0.2-73ce44cee343b630c60405caa783b28e -package-id wai-1.4.0.2-c4f00631ec4c70d0d291ab5ae559a551 -XHaskell98 Network.Wai.Session Network.Wai.Session.Map -O0

Network/Wai/Session.hs:13:18:
    Could not find module `Data.Vault'
    Perhaps you meant
      Data.Default (needs flag -package data-default-0.5.3)
    Use -v to see a list of the files searched for.