Resolving dependencies...
Starting     exceptions-0.10.4
Building     exceptions-0.10.4
Completed    exceptions-0.10.4
Starting     fakepull-0.3.0.1
Building     fakepull-0.3.0.1
Failed to install fakepull-0.3.0.1
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/fakepull-0.3.0.1-L9UhUFxi7Pw4cvzcubjygA.log ):
cabal: Entering directory '/tmp/cabal-tmp-2463/fakepull-0.3.0.1'
Configuring fakepull-0.3.0.1...
Preprocessing library for fakepull-0.3.0.1..
Building library for fakepull-0.3.0.1..
[1 of 2] Compiling Test.Pull.Fake.IO ( src/Test/Pull/Fake/IO.hs, dist/build/Test/Pull/Fake/IO.o )
[2 of 2] Compiling Test.Pull.Fake.Pure ( src/Test/Pull/Fake/Pure.hs, dist/build/Test/Pull/Fake/Pure.o )

src/Test/Pull/Fake/Pure.hs:43:7: error:
    Not in scope: type constructor or class ‘MonadFail’
    Perhaps you meant ‘MonadFix’ (imported from Control.Monad.Fix)
   |
43 |     , MonadFail
   |       ^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-2463/fakepull-0.3.0.1'
cabal: Error: some packages failed to install:
fakepull-0.3.0.1-L9UhUFxi7Pw4cvzcubjygA failed during the building phase. The
exception was:
ExitFailure 1