Warning: The install command is a part of the legacy v1 style of cabal usage.

Please switch to using either the new project style and the new-install
command or the legacy v1-install alias as new-style projects will become the
default in the next version of cabal-install. Please file a bug if you cannot
replicate a working v1- use case with the new-style commands.

For more information, see: https://wiki.haskell.org/Cabal/NewBuild

Resolving dependencies...
Starting     NineP-0.0.2.1
Starting     extensible-exceptions-0.1.1.4
Building     NineP-0.0.2.1
Building     extensible-exceptions-0.1.1.4
Completed    extensible-exceptions-0.1.1.4
Starting     monad-loops-0.4.3
Building     monad-loops-0.4.3
Completed    NineP-0.0.2.1
Starting     network-2.6.3.6
Completed    monad-loops-0.4.3
Starting     old-locale-1.0.0.7
Building     old-locale-1.0.0.7
Completed    old-locale-1.0.0.7
Starting     regex-base-0.93.2
Building     network-2.6.3.6
Building     regex-base-0.93.2
Completed    regex-base-0.93.2
Starting     stateref-0.3
Building     stateref-0.3
Completed    stateref-0.3
Starting     transformers-compat-0.6.2
Building     transformers-compat-0.6.2
Completed    network-2.6.3.6
Starting     monad-peel-0.2.1.2
Building     monad-peel-0.2.1.2
Completed    transformers-compat-0.6.2
Starting     old-time-1.1.0.3
Building     old-time-1.1.0.3
Completed    monad-peel-0.2.1.2
Starting     regex-posix-0.95.2
Building     regex-posix-0.95.2
Completed    old-time-1.1.0.3
Starting     hslogger-1.2.12
Building     hslogger-1.2.12
Completed    regex-posix-0.95.2
Starting     exceptions-0.10.0
Building     exceptions-0.10.0
Completed    hslogger-1.2.12
Starting     mstate-0.2.7
Building     mstate-0.2.7
Failed to install mstate-0.2.7
Build log ( /home/builder/.cabal/logs/ghc-8.6.1/mstate-0.2.7-Gxf2p9r1todFOst6xU6Bdo.log ):
cabal: Entering directory '/tmp/cabal-tmp-26429/mstate-0.2.7'
Configuring mstate-0.2.7...
Preprocessing library for mstate-0.2.7..
Building library for mstate-0.2.7..
[1 of 1] Compiling Control.Concurrent.MState ( src/Control/Concurrent/MState.hs, dist/build/Control/Concurrent/MState.o )

src/Control/Concurrent/MState.hs:75:3: error:
    • Could not deduce (Control.Monad.Fail.MonadFail m)
        arising from a do statement
        with the failable pattern ‘(a, Just t')’
      from the context: MonadPeelIO m
        bound by the type signature for:
                   runMState :: forall (m :: * -> *) t a.
                                MonadPeelIO m =>
                                MState t m a -> t -> m (a, t)
        at src/Control/Concurrent/MState.hs:(70,1)-(73,20)
      Possible fix:
        add (Control.Monad.Fail.MonadFail m) to the context of
          the type signature for:
            runMState :: forall (m :: * -> *) t a.
                         MonadPeelIO m =>
                         MState t m a -> t -> m (a, t)
    • In a stmt of a 'do' block:
        (a, Just t') <- runAndWaitMaybe True m t
      In the expression:
        do (a, Just t') <- runAndWaitMaybe True m t
           return (a, t')
      In an equation for ‘runMState’:
          runMState m t
            = do (a, Just t') <- runAndWaitMaybe True m t
                 return (a, t')
   |
75 |   (a, Just t') <- runAndWaitMaybe True m t
   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-26429/mstate-0.2.7'
Starting     convertible-1.1.1.0
Completed    exceptions-0.10.0
Building     convertible-1.1.1.0
Completed    convertible-1.1.1.0
cabal: Error: some packages failed to install:
Network-NineP-0.4.4-1VBPiDN4KuD2MWPTE8cObw depends on Network-NineP-0.4.4
which failed to install.
mstate-0.2.7-Gxf2p9r1todFOst6xU6Bdo failed during the building phase. The
exception was:
ExitFailure 1