Resolving dependencies...
Starting     groups-0.5.3
Starting     StateVar-1.2.2
Starting     base-orphans-0.8.6
Starting     base-compat-0.12.1
Building     groups-0.5.3
Building     base-orphans-0.8.6
Building     StateVar-1.2.2
Building     base-compat-0.12.1
Completed    StateVar-1.2.2
Starting     hashable-1.3.5.0
Completed    groups-0.5.3
Starting     indexed-traversable-0.1.2
Building     hashable-1.3.5.0
Building     indexed-traversable-0.1.2
Completed    base-orphans-0.8.6
Starting     integer-logarithms-1.0.3.1
Completed    base-compat-0.12.1
Starting     splitmix-0.1.0.4
Building     integer-logarithms-1.0.3.1
Completed    hashable-1.3.5.0
Starting     tagged-0.8.6.1
Completed    indexed-traversable-0.1.2
Starting     th-abstraction-0.4.4.0
Building     splitmix-0.1.0.4
Building     tagged-0.8.6.1
Building     th-abstraction-0.4.4.0
Completed    integer-logarithms-1.0.3.1
Starting     transformers-compat-0.7.2
Building     transformers-compat-0.7.2
Completed    splitmix-0.1.0.4
Starting     contravariant-1.5.5
Building     contravariant-1.5.5
Completed    tagged-0.8.6.1
Starting     unordered-containers-0.2.19.1
Building     unordered-containers-0.2.19.1
Completed    th-abstraction-0.4.4.0
Starting     time-compat-1.9.6.1
Building     time-compat-1.9.6.1
Completed    contravariant-1.5.5
Starting     OneTuple-0.3.1
Completed    transformers-compat-0.7.2
Starting     random-1.2.1.1
Building     OneTuple-0.3.1
Building     random-1.2.1.1
Completed    OneTuple-0.3.1
Starting     distributive-0.6.2.1
Building     distributive-0.6.2.1
Completed    time-compat-1.9.6.1
Starting     universe-base-1.1.3
Building     universe-base-1.1.3
Completed    distributive-0.6.2.1
Starting     base-compat-batteries-0.12.1
Building     base-compat-batteries-0.12.1
Completed    universe-base-1.1.3
Starting     comonad-5.0.8
Building     comonad-5.0.8
Completed    unordered-containers-0.2.19.1
Starting     universe-reverse-instances-1.1.1
Building     universe-reverse-instances-1.1.1
Completed    random-1.2.1.1
Starting     relude-1.0.0.1
Building     relude-1.0.0.1
Completed    base-compat-batteries-0.12.1
Starting     QuickCheck-2.14.2
Completed    universe-reverse-instances-1.1.1
Starting     semirings-0.6
Building     QuickCheck-2.14.2
Building     semirings-0.6
Completed    comonad-5.0.8
Starting     bifunctors-5.5.12
Building     bifunctors-5.5.12
Completed    semirings-0.6
Completed    relude-1.0.0.1
Completed    bifunctors-5.5.12
Starting     semigroupoids-5.3.7
Building     semigroupoids-5.3.7
Completed    QuickCheck-2.14.2
Completed    semigroupoids-5.3.7
Starting     lattices-2.0.3
Building     lattices-2.0.3
Completed    lattices-2.0.3
Starting     interval-patterns-0.5.0.0
Building     interval-patterns-0.5.0.0
Failed to install interval-patterns-0.5.0.0
Build log ( /home/builder/.cabal/logs/ghc-8.10.2/interval-patterns-0.5.0.0-8QuUVTQjfH71yngTm7Wqyu.log ):
cabal: Entering directory '/tmp/cabal-tmp-11043/interval-patterns-0.5.0.0'
Configuring interval-patterns-0.5.0.0...
Preprocessing library for interval-patterns-0.5.0.0..
Building library for interval-patterns-0.5.0.0..
[1 of 6] Compiling Data.OneOrTwo    ( src/Data/OneOrTwo.hs, dist/build/Data/OneOrTwo.o, dist/build/Data/OneOrTwo.dyn_o )
[2 of 6] Compiling Data.Interval    ( src/Data/Interval.hs, dist/build/Data/Interval.o, dist/build/Data/Interval.dyn_o )
[3 of 6] Compiling Data.Interval.Borel ( src/Data/Interval/Borel.hs, dist/build/Data/Interval/Borel.o, dist/build/Data/Interval/Borel.dyn_o )
[4 of 6] Compiling Data.Interval.Layers ( src/Data/Interval/Layers.hs, dist/build/Data/Interval/Layers.o, dist/build/Data/Interval/Layers.dyn_o )
[5 of 6] Compiling Data.Timeframe   ( src/Data/Timeframe.hs, dist/build/Data/Timeframe.o, dist/build/Data/Timeframe.dyn_o )
[6 of 6] Compiling Data.Calendar    ( src/Data/Calendar.hs, dist/build/Data/Calendar.o, dist/build/Data/Calendar.dyn_o )

src/Data/Calendar.hs:89:1: error:
    The type signature for ! lacks an accompanying binding
      (The type signature must be given where ! is declared)
   |
89 | (!) :: (Ord ev, Num n) => Calendar ev n -> ev -> Event n
   | ^^^
cabal: Leaving directory '/tmp/cabal-tmp-11043/interval-patterns-0.5.0.0'
cabal: Error: some packages failed to install:
interval-patterns-0.5.0.0-8QuUVTQjfH71yngTm7Wqyu failed during the building
phase. The exception was:
ExitFailure 1