Some tests fail on GHC 7.4.2

[aristidb]

I get the following test output:

$ ./dist/build/cabal-dev-test/cabal-dev-test
Basic invocation tests:
  --help exists with success: [OK]
  --version exists with success: [OK]
  --numeric-version has parseable output: [OK]
  exits with failure when no arguments are supplied: [OK]
  short flag is passed through to cabal: [OK]
Sandboxed:
  add-source stays sandboxed (no-space dir): [Failed]
ERROR: /home/aristid/.cabal/share/cabal-dev-0.9.1/admin/00-index.tar: copyFile: does not exist (No such file or directory)
  add-source stays sandboxed (dir with spaces): [Failed]
ERROR: /home/aristid/.cabal/share/cabal-dev-0.9.1/admin/00-index.tar: copyFile: does not exist (No such file or directory)
  Builds ok regardless of the state of the logs directory: [Failed]
ERROR: /home/aristid/.cabal/share/cabal-dev-0.9.1/admin/00-index.tar: copyFile: does not exist (No such file or directory)
  Index tar files contain all contents: [Failed]
ERROR: /home/aristid/.cabal/share/cabal-dev-0.9.1/admin/00-index.tar: copyFile: does not exist (No such file or directory)

         Test Cases  Total      
 Passed  5           5          
 Failed  4           4          
 Total   9           9          

These are my package versions (just the Haskell platform and some additional packages that were necessary to build cabal-dev and test suite):

$ ghc-pkg list
/nix/store/n5nsa9sfxqsign0h60sbm7g1q40v09jm-haskell-env-ghc-7.4.2/lib/package.conf.d
   Cabal-1.14.0
   GLUT-2.1.2.1
   HTTP-4000.2.5
   HUnit-1.2.5.1
   MonadRandom-0.1.8
   OpenGL-2.2.3.1
   QuickCheck-2.5.1.1
   ansi-terminal-0.6
   ansi-wl-pprint-0.6.6
   array-0.4.0.0
   async-2.0.1.3
   base-4.5.1.0
   bin-package-db-0.0.0.0
   binary-0.5.1.0
   bytestring-0.9.2.1
   cgi-3001.1.7.4
   containers-0.4.2.1
   deepseq-1.3.0.0
   directory-1.1.0.2
   extensible-exceptions-0.1.1.4
   fgl-5.4.2.4
   filepath-1.3.0.0
   ghc-7.4.2
   ghc-paths-0.1.0.9
   ghc-prim-0.2.0.0
   haddock-2.11.0
   haskell-platform-2012.4.0.0
   haskell-src-1.0.1.5
   haskell2010-1.1.0.1
   haskell98-2.0.0.1
   hoopl-3.8.7.3
   hostname-1.0
   hpc-0.5.1.1
   html-1.0.1.2
   integer-gmp-0.4.0.0
   mtl-2.1.2
   network-2.3.1.0
   old-locale-1.0.0.4
   old-time-1.1.0.0
   parallel-3.2.0.3
   parsec-3.1.3
   pretty-1.1.1.0
   primitive-0.5.0.1
   process-1.1.0.1
   random-1.0.1.1
   regex-base-0.93.2
   regex-compat-0.95.1
   regex-posix-0.95.2
   rts-1.0
   setenv-0.1.0
   split-0.2.1.1
   stm-2.4
   syb-0.3.7
   tar-0.4.0.1
   template-haskell-2.7.0.0
   test-framework-0.8
   test-framework-hunit-0.3.0
   text-0.11.2.3
   time-1.4
   transformers-0.3.0.0
   unix-2.5.1.1
   vector-0.10.0.1
   xhtml-3000.2.1
   xml-1.3.12
   zlib-0.5.4.0