Panic "Lookup local fingerprint main:Main.main{v r6xE}"

When compiling some quickcheck tests for a larger internal project I receive the following error on my x86-64 Linux 3.10 system:

ghc: panic! (the 'impossible' happened)
  (GHC version 7.6.3 for x86_64-unknown-linux):
	urk! lookup local fingerprint main:Main.main{v r6xE}

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

System info:

$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 7.6.3
$ uname -a
Linux Vodka 3.9.6-200.fc18.x86_64 #1 SMP Thu Jun 13 18:56:55 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
$ gcc --version
gcc (GCC) 4.7.2 20121109 (Red Hat 4.7.2-8)
Copyright (C) 2012 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ ld --version
GNU ld version 2.23.51.0.1-6.fc18 20120806
Copyright 2012 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.

Trac metadata

Trac field	Value
Version	7.6.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
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