Resolving dependencies...
Downloading  wordn-0.1.0.0
Downloaded   wordn-0.1.0.0
Starting     wordn-0.1.0.0
Building     wordn-0.1.0.0
Failed to install wordn-0.1.0.0
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/wordn-0.1.0.0-I2xguFwcIjP9u2CGHdefwt.log ):
cabal: Entering directory '/tmp/cabal-tmp-18175/wordn-0.1.0.0'
Configuring wordn-0.1.0.0...
Preprocessing library 'wordn-indef' for wordn-0.1.0.0..
Building library 'wordn-indef' instantiated with WordSize = <WordSize>
for wordn-0.1.0.0..

src-wordn-indef/WordSize.hsig:5:14: error:
    Unsupported extension: StandaloneKindSignatures
  |
5 | {-# language StandaloneKindSignatures #-}
  |              ^^^^^^^^^^^^^^^^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-18175/wordn-0.1.0.0'
cabal: Error: some packages failed to install:
wordn-0.1.0.0-I2xguFwcIjP9u2CGHdefwt failed during the building phase. The
exception was:
ExitFailure 1