Resolving dependencies...
Warning: The following packages are likely to be broken by the reinstalls:
parsec-3.1.13.0
Cabal-2.4.0.1
Continuing even though the plan contains dangerous reinstalls.
Starting     transformers-0.5.6.2
Building     transformers-0.5.6.2
Completed    transformers-0.5.6.2
Starting     mtl-2.2.2
Building     mtl-2.2.2
Completed    mtl-2.2.2
Starting     monad-supply-0.9
Building     monad-supply-0.9
Failed to install monad-supply-0.9
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/monad-supply-0.9-Fkqfdt0oKOoTAVuJBEgu4.log ):
cabal: Entering directory '/tmp/cabal-tmp-21017/monad-supply-0.9'
Configuring monad-supply-0.9...
Preprocessing library for monad-supply-0.9..
Building library for monad-supply-0.9..
[1 of 2] Compiling Control.Monad.Supply ( src/Control/Monad/Supply.hs, dist/build/Control/Monad/Supply.o )

src/Control/Monad/Supply.hs:57:10: error:
    Not in scope: type constructor or class ‘MonadFail’
    Perhaps you meant ‘MonadFix’ (imported from Control.Monad.Fix)
   |
57 | instance MonadFail m => MonadSupply s (SupplyT s m) where
   |          ^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-21017/monad-supply-0.9'
cabal: Error: some packages failed to install:
monad-supply-0.9-Fkqfdt0oKOoTAVuJBEgu4 failed during the building phase. The
exception was:
ExitFailure 1