Resolving dependencies...
Starting     cabal-doctest-1.0.8
Starting     hashable-1.3.2.0
Starting     first-class-families-0.8.0.1
Starting     primitive-0.7.1.0
Building     cabal-doctest-1.0.8
Building     hashable-1.3.2.0
Building     first-class-families-0.8.0.1
Building     primitive-0.7.1.0
Completed    first-class-families-0.8.0.1
Starting     splitmix-0.1.0.3
Completed    cabal-doctest-1.0.8
Starting     syb-0.7.2.1
Building     splitmix-0.1.0.3
Building     syb-0.7.2.1
Completed    hashable-1.3.2.0
Starting     th-abstraction-0.4.2.0
Building     th-abstraction-0.4.2.0
Completed    splitmix-0.1.0.3
Starting     async-2.2.3
Building     async-2.2.3
Completed    syb-0.7.2.1
Starting     random-1.2.0
Building     random-1.2.0
Completed    async-2.2.3
Completed    th-abstraction-0.4.2.0
Starting     type-errors-0.2.0.0
Building     type-errors-0.2.0.0
Completed    type-errors-0.2.0.0
Completed    primitive-0.7.1.0
Starting     atomic-primops-0.8.4
Building     atomic-primops-0.8.4
Completed    random-1.2.0
Starting     QuickCheck-2.14.2
Building     QuickCheck-2.14.2
Completed    atomic-primops-0.8.4
Starting     unagi-chan-0.4.1.3
Building     unagi-chan-0.4.1.3
Completed    unagi-chan-0.4.1.3
Completed    QuickCheck-2.14.2
Starting     polysemy-1.6.0.0
Building     polysemy-1.6.0.0
Completed    polysemy-1.6.0.0
Starting     polysemy-kvstore-0.1.1.1
Building     polysemy-kvstore-0.1.1.1
Failed to install polysemy-kvstore-0.1.1.1
Build log ( /home/builder/.cabal/logs/ghc-8.10.2/polysemy-kvstore-0.1.1.1-HBX6QGHT1W7EbUvosX6vA0.log ):
cabal: Entering directory '/tmp/cabal-tmp-22836/polysemy-kvstore-0.1.1.1'
Configuring polysemy-kvstore-0.1.1.1...
Preprocessing library for polysemy-kvstore-0.1.1.1..
Building library for polysemy-kvstore-0.1.1.1..
[1 of 2] Compiling Paths_polysemy_kvstore ( dist/build/autogen/Paths_polysemy_kvstore.hs, dist/build/Paths_polysemy_kvstore.o, dist/build/Paths_polysemy_kvstore.dyn_o )
[2 of 2] Compiling Polysemy.KVStore ( src/Polysemy/KVStore.hs, dist/build/Polysemy/KVStore.o, dist/build/Polysemy/KVStore.dyn_o )

src/Polysemy/KVStore.hs:124:1: warning: [-Wtabs]
    Tab character found here, and in 11 further locations.
    Please use spaces instead.
    |
124 |                  (k  -> k')
    | ^^^^^^^^

src/Polysemy/KVStore.hs:132:41: error:
    Unexpected lambda-case expression in function application:
        \case
    You could write it with parentheses
    Or perhaps you meant to enable BlockArguments?
    |
132 | runKVStoreAsKVStore f g h = reinterpret \case
    |                                         ^

src/Polysemy/KVStore.hs:133:14: error: parse error on input ->
    |
133 | LookupKV k   -> fmap h <$> lookupKV @k' @v' (f k)
    |              ^^
cabal: Leaving directory '/tmp/cabal-tmp-22836/polysemy-kvstore-0.1.1.1'
cabal: Error: some packages failed to install:
polysemy-kvstore-0.1.1.1-HBX6QGHT1W7EbUvosX6vA0 failed during the building
phase. The exception was:
ExitFailure 1