GHC 8.0.1 crash

Attempting to install the geodetics package results in a GHC 8.0.1 crash.

% ghc --version
The Glorious Glasgow Haskell Compilation System, version 8.0.1
% uname -a
Linux moron 4.6.2-1-ARCH #1 SMP PREEMPT Wed Jun 8 08:40:59 CEST 2016 x86_64 GNU/Linux
% cabal install geodetics-0.0.4
...omitted
[2 of 9] Compiling Geodetics.Ellipsoids ( src/Geodetics/Ellipsoids.hs, dist/dist-sandbox-49e45c7e/build/Geodetics/Ellipsoids.o )
ghc: panic! (the 'impossible' happened)
  (GHC version 8.0.1 for x86_64-unknown-linux):
        Template variable unbound in rewrite rule
  Variable: cobox_scSX
  Rule "SPEC t @ a @ 'DQuantity @ 'DQuantity @ d @ d' @ 'DQuantity @ 'DQuantity @ d @ d' @ 'DQuantity @ 'DQuantity @ d @ d'"
  Rule bndrs: [cobox_scSX, cobox_scSY, cobox_scSZ, cobox_scT0,
               cobox_scT1, $dKnownVariant_scT2, $dKnownVariant_scT3,
               $dKnownVariant_scT4, $dKnownVariant_scT5, $dKnownVariant_scT6,
               $dKnownVariant_scT7, $dNum_scT8]
  LHS args: [TYPE: a_ac0a, TYPE: 'DQuantity, TYPE: 'DQuantity,
             TYPE: d_ac0b, TYPE: d'_ac0c, TYPE: 'DQuantity, TYPE: 'DQuantity,
             TYPE: d_ac0b, TYPE: d'_ac0c, TYPE: 'DQuantity, TYPE: 'DQuantity,
             TYPE: d_ac0b, TYPE: d'_ac0c, CO: <d_ac0b * d'_ac0c>_N,
             CO: cobox_scSY, CO: <d_ac0b * d'_ac0c>_N, CO: cobox_scT0,
             CO: cobox_scT1, $dKnownVariant_scT2, $dKnownVariant_scT3,
             $dKnownVariant_scT4, $dKnownVariant_scT5, $dKnownVariant_scT6,
             $dKnownVariant_scT7, $dNum_scT8]
  Actual args: [TYPE: a_ac0a, TYPE: 'DQuantity, TYPE: 'DQuantity,
                TYPE: d_ac0b, TYPE: d'_ac0c, TYPE: 'DQuantity, TYPE: 'DQuantity,
                TYPE: d_ac0b, TYPE: d'_ac0c, TYPE: 'DQuantity, TYPE: 'DQuantity,
                TYPE: d_ac0b, TYPE: d'_ac0c, CO: <d_ac0b * d'_ac0c>_N,
                CO: D:R:*[1], CO: <d_ac0b * d'_ac0c>_N, CO: D:R:*[1], CO: D:R:*[1],
                $fKnownVariantDQuantity, $fKnownVariantDQuantity,
                $fKnownVariantDQuantity, $fKnownVariantDQuantity,
                $fKnownVariantDQuantity, $fKnownVariantDQuantity, $dNum_acqm,
                tx_aaQW, v_aaQZ]

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

cabal: Error: some packages failed to install:
geodetics-0.0.4 failed during the building phase. The exception was:
ExitFailure 1

Similarity to #10602 (closed) and #9160 (closed) has been pointed out. I also tried:

% cabal --ghc-options="-O2" install geodetics-0.0.4

with no difference in the crash outcome.

Trac metadata

Trac field	Value
Version	8.0.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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