ghc-pkg does not build

I am experiencing build errors with HEAD. Steps to reproduce:

git clone http://darcs.haskell.org/ghc.git ghc-working
cd ghc-working/
./sync-all get
perl boot
./configure
make

Build process terminates with an error:

utils/ghc-pkg/Main.hs:881:3:
    No instance for (Bin.Binary (InstalledPackageInfo_ String))
      arising from a use of `writeBinaryFileAtomic'
    Possible fix:
      add an instance declaration for
      (Bin.Binary (InstalledPackageInfo_ String))
    In the first argument of `catchIO', namely
      `writeBinaryFileAtomic
         filename (map convertPackageInfoOut (packages db))'
...

I'm using GHC 7.6.2.20130129 for bootstrapping. I'm stuck with development because of this :/

Trac metadata

Trac field	Value
Version	7.6.2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	ghc-pkg
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture