GHC 7.10.2 RC: the impossible happened on hPDB-examples-1.2.0.2

When compiling with the RC for Stackage, I get:

[1 of 1] Compiling Main             ( examples/Rg.hs, dist/build/Rg/Rg-tmp/Main.o )

<no location info>:
    ghc: panic! (the 'impossible' happened)
  (GHC version 7.10.1.20150619 for x86_64-unknown-linux):
        Simplifier ticks exhausted
  When trying UnfoldingDone bindIO
  To increase the limit, use -fsimpl-tick-factor=N (default 100)
  If you need to do this, let GHC HQ know, and what factor you needed
  To see detailed counts use -ddump-simpl-stats
  Total ticks: 19573

Trac metadata

Trac field	Value
Version	7.10.2-rc1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture