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GHC 8.6.3 hangs building wreq-0.5.3.1 on Windows

cabal new-install wreq-0.5.3.1 -j1

Observe ghc.exe seemingly stuck in an infinite loop after the following line with no allocating or IO occurring:

[ 5 of 15] Compiling Network.Wreq.Internal.Lens ( Network\Wreq\Internal\Lens.hs, dist\build\Network\Wreq\Internal\Lens.o )

Trac metadata
Trac field Value
Version 8.6.3
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
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