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     base-orphans-0.8.2
Starting     th-abstraction-0.3.2.0
Starting     cabal-doctest-1.0.8
Starting     hashable-1.3.0.0
Building     th-abstraction-0.3.2.0
Building     base-orphans-0.8.2
Building     cabal-doctest-1.0.8
Building     hashable-1.3.0.0
Completed    cabal-doctest-1.0.8
Starting     transformers-0.5.6.2
Building     transformers-0.5.6.2
Completed    hashable-1.3.0.0
Starting     unordered-containers-0.2.11.0
Building     unordered-containers-0.2.11.0
Completed    base-orphans-0.8.2
Completed    th-abstraction-0.3.2.0
Completed    unordered-containers-0.2.11.0
Completed    transformers-0.5.6.2
Starting     tagged-0.8.6
Starting     primitive-0.7.1.0
Starting     transformers-compat-0.6.5
Starting     mtl-2.2.2
Building     tagged-0.8.6
Building     transformers-compat-0.6.5
Building     primitive-0.7.1.0
Building     mtl-2.2.2
Completed    tagged-0.8.6
Starting     StateVar-1.2
Completed    transformers-compat-0.6.5
Starting     distributive-0.6.2
Building     StateVar-1.2
Completed    mtl-2.2.2
Completed    StateVar-1.2
Starting     contravariant-1.5.2
Building     contravariant-1.5.2
Building     distributive-0.6.2
Completed    distributive-0.6.2
Starting     comonad-5.0.6
Completed    contravariant-1.5.2
Building     comonad-5.0.6
Completed    primitive-0.7.1.0
Starting     vector-0.12.1.2
Building     vector-0.12.1.2
Completed    comonad-5.0.6
Starting     bifunctors-5.5.7
Building     bifunctors-5.5.7
Completed    bifunctors-5.5.7
Starting     profunctors-5.5.2
Building     profunctors-5.5.2
Completed    profunctors-5.5.2
Completed    vector-0.12.1.2
Starting     cronus-0.1.0.0
Building     cronus-0.1.0.0
Failed to install cronus-0.1.0.0
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/cronus-0.1.0.0-BcGt1zgMYc0BBvJkBfI4FA.log ):
cabal: Entering directory '/tmp/cabal-tmp-23899/cronus-0.1.0.0'
Configuring cronus-0.1.0.0...
Preprocessing library for cronus-0.1.0.0..
Building library for cronus-0.1.0.0..
[ 1 of 18] Compiling Cronus           ( Cronus.hs, dist/build/Cronus.o )

Cronus.hs:138:3: error:
    Not in scope: type constructor or class ‘MonadFail’
    Perhaps you meant ‘MonadFix’ (imported from Control.Monad.State)
    |
138 | , MonadFail(..)
    |   ^^^^^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-23899/cronus-0.1.0.0'
cabal: Error: some packages failed to install:
cronus-0.1.0.0-BcGt1zgMYc0BBvJkBfI4FA failed during the building phase. The
exception was:
ExitFailure 1