[GHC] #15059: ghcpkg05 fails

[GHC]

#15059: ghcpkg05 fails
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        Reporter:  bgamari           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.6.1
       Component:  Test Suite        |              Version:  8.2.2
      Resolution:                    |             Keywords:  ci-breakage
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 We are a bit stuck on this one because we can't reproduce it reliably (or
 even, currently, at all).

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15059#comment:2>
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