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     primitive-0.6.4.0
Starting     haskell-src-exts-1.20.3
Building     primitive-0.6.4.0
Building     haskell-src-exts-1.20.3
Completed    primitive-0.6.4.0
Starting     safe-0.3.17
Building     safe-0.3.17
Completed    safe-0.3.17
Starting     syb-0.7
Building     syb-0.7
Completed    syb-0.7
Starting     th-abstraction-0.2.10.0
Building     th-abstraction-0.2.10.0
Completed    th-abstraction-0.2.10.0
Starting     utf8-string-1.0.1.1
Building     utf8-string-1.0.1.1
Completed    utf8-string-1.0.1.1
Starting     vector-0.12.0.2
Building     vector-0.12.0.2
Completed    vector-0.12.0.2
Starting     th-expand-syns-0.4.4.0
Building     th-expand-syns-0.4.4.0
Completed    th-expand-syns-0.4.4.0
Starting     th-lift-0.7.11
Building     th-lift-0.7.11
Completed    th-lift-0.7.11
Starting     th-reify-many-0.1.8
Building     th-reify-many-0.1.8
Completed    th-reify-many-0.1.8
Starting     th-lift-instances-0.1.11
Building     th-lift-instances-0.1.11
Completed    th-lift-instances-0.1.11
Starting     th-orphans-0.13.6
Building     th-orphans-0.13.6
Completed    th-orphans-0.13.6
Completed    haskell-src-exts-1.20.3
Starting     haskell-src-meta-0.8.0.3
Building     haskell-src-meta-0.8.0.3
Completed    haskell-src-meta-0.8.0.3
Starting     hsx2hs-0.14.1.4
Building     hsx2hs-0.14.1.4
Failed to install hsx2hs-0.14.1.4
Build log ( /home/builder/.cabal/logs/ghc-8.6.1/hsx2hs-0.14.1.4-F2eVF9RnJOIdX90MmozkS.log ):
cabal: Entering directory '/tmp/cabal-tmp-9669/hsx2hs-0.14.1.4'
Configuring hsx2hs-0.14.1.4...
Preprocessing executable 'hsx2hs' for hsx2hs-0.14.1.4..
Building executable 'hsx2hs' for hsx2hs-0.14.1.4..

<no location info>: warning: [-Wmissing-home-modules]
    These modules are needed for compilation but not listed in your .cabal file's other-modules: 
        Language.Haskell.HSX.Transform
[1 of 2] Compiling Language.Haskell.HSX.Transform ( src/Language/Haskell/HSX/Transform.hs, dist/build/hsx2hs/hsx2hs-tmp/Language/Haskell/HSX/Transform.o )

src/Language/Haskell/HSX/Transform.hs:578:5: error:
    • No instance for (Control.Monad.Fail.MonadFail HsxM)
        arising from a do statement
        with the failable pattern ‘([pat''], attrGuards, guards, decls'')’
    • In a stmt of a 'do' block:
        ([pat''], attrGuards, guards, decls'') <- transformPatterns [pat']
      In the expression:
        do let ([pat'], rnpss) = unzip $ renameIrrPats ...
           ([pat''], attrGuards, guards, decls'') <- transformPatterns [pat']
           rhs' <- mkRhs (attrGuards ++ guards) (concat rnpss) rhs
           decls' <- case decls of
                       Nothing -> return Nothing
                       Just (BDecls l' ds) -> do ...
                       _ -> error
                              "Cannot bind implicit parameters in the                      \ \'where\' clause of a function using regular patterns."
           ....
      In an equation for ‘transformAlt’:
          transformAlt (Alt l pat rhs decls)
            = do let ([pat'], rnpss) = ...
                 ([pat''], attrGuards, guards, decls'') <- transformPatterns [pat']
                 rhs' <- mkRhs (attrGuards ++ guards) (concat rnpss) rhs
                 ....
    |
578 |     ([pat''], attrGuards, guards, decls'') <- transformPatterns [pat']
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-9669/hsx2hs-0.14.1.4'
cabal: Error: some packages failed to install:
hsx2hs-0.14.1.4-F2eVF9RnJOIdX90MmozkS failed during the building phase. The
exception was:
ExitFailure 1