[nightly] 2013-04-23 cam-04-unx Failure building master (perf) on x86_64-unknown-linux-gnu

[GHC Build Reports]

Branch            = master
Flavour           = perf
Build location    = /64playpen/gmainlan/nightly-new/cam-04-unx/master
Source repository = /home/gmainlan/ghc-mirror
PATH              = /home/gmainlan/local/linux-x86_64/ghc-7.4.2-hp-2012.4.0.0/bin:/usr/bin:/bin

Nightly run begun at Tue Apr 23 18:01:20 BST 2013

cam-04-unx building master (perf) on x86_64-unknown-linux-gnu
**** Checking out new source tree                 ... failed; relevant barfage is below.
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Respository hashes:
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The last 30 lines of /64playpen/gmainlan/nightly-new/cam-04-unx/master/2013-04-23/logs/checkout.log are
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Submodule 'libraries/xhtml' (http://darcs.haskell.org/libraries/xhtml.git/) registered for path 'libraries/xhtml'
== running git submodule update
Cloning into 'libraries/Cabal'...
Submodule path 'libraries/Cabal': checked out '14c5a3f78c00772cf54c2fd5c920a64d53e6f594'
Cloning into 'libraries/Win32'...
Submodule path 'libraries/Win32': checked out '1f9f7175e747aad7c424f5b12be5b95f15286f0b'
Cloning into 'libraries/binary'...
Submodule path 'libraries/binary': checked out '4d890e4465a0494e5fd80fbcf1fb339d8bd5800d'
Cloning into 'libraries/bytestring'...
error: Request for 05f1d3929d6d672c600bac3d16ec41723b432bff aborted
error: Unable to start request
error: Unable to find 05f1d3929d6d672c600bac3d16ec41723b432bff under http://darcs.haskell.org/libraries/bytestring.git
Cannot obtain needed tree 05f1d3929d6d672c600bac3d16ec41723b432bff
while processing commit 996694f31d34e410caef5ef310e805e070b75760.
error: Fetch failed.
Clone of 'http://darcs.haskell.org/libraries/bytestring.git/' into submodule path 'libraries/bytestring' failed
git failed: 256 at ./sync-all line 116.
== Checking for old haddock repo
== Checking for old binary repo
== Checking for old mtl repo
== Checking for old Cabal repo
== Checking for old time from tarball
============================
ATTENTION!

You have an old time package in your GHC tree!

Please remove it (e.g. "rm -r libraries/time"), and then run
"./sync-all get" to get the new repository.
============================


Nightly run ended at Tue Apr 23 18:02:12 BST 2013