Resolving dependencies...
Starting     exceptions-0.10.4
Building     exceptions-0.10.4
Completed    exceptions-0.10.4
Starting     fakefs-0.3.0.1
Building     fakefs-0.3.0.1
Failed to install fakefs-0.3.0.1
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/fakefs-0.3.0.1-2jcelauNNtT2kdN4AZxFyi.log ):
cabal: Entering directory '/tmp/cabal-tmp-18664/fakefs-0.3.0.1'
Configuring fakefs-0.3.0.1...
Preprocessing library for fakefs-0.3.0.1..
Building library for fakefs-0.3.0.1..
[1 of 1] Compiling Test.FileSystem.Fake ( src/Test/FileSystem/Fake.hs, dist/build/Test/FileSystem/Fake.o )

src/Test/FileSystem/Fake.hs:51:7: error:
    Not in scope: type constructor or class ‘MonadFail’
    Perhaps you meant ‘MonadFix’ (imported from Control.Monad.Fix)
   |
51 |     , MonadFail
   |       ^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-18664/fakefs-0.3.0.1'
cabal: Error: some packages failed to install:
fakefs-0.3.0.1-2jcelauNNtT2kdN4AZxFyi failed during the building phase. The
exception was:
ExitFailure 1