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     base64-bytestring-1.0.0.3
Starting     clock-0.8
Starting     call-stack-0.2.0
Starting     hashable-1.3.0.0
Building     call-stack-0.2.0
Building     base64-bytestring-1.0.0.3
Building     clock-0.8
Building     hashable-1.3.0.0
Completed    call-stack-0.2.0
Starting     integer-logarithms-1.0.3
Building     integer-logarithms-1.0.3
Completed    clock-0.8
Starting     microlens-0.4.11.2
Completed    base64-bytestring-1.0.0.3
Starting     old-locale-1.0.0.7
Building     microlens-0.4.11.2
Building     old-locale-1.0.0.7
Completed    hashable-1.3.0.0
Starting     possibly-1.0.0.0
Completed    integer-logarithms-1.0.3
Starting     primitive-0.7.0.1
Building     possibly-1.0.0.0
Completed    old-locale-1.0.0.7
Starting     semigroups-0.19.1
Building     primitive-0.7.0.1
Building     semigroups-0.19.1
Completed    possibly-1.0.0.0
Starting     time-locale-compat-0.1.1.5
Completed    microlens-0.4.11.2
Starting     unordered-containers-0.2.10.0
Building     time-locale-compat-0.1.1.5
Completed    semigroups-0.19.1
Building     unordered-containers-0.2.10.0
Completed    time-locale-compat-0.1.1.5
Completed    unordered-containers-0.2.10.0
Completed    primitive-0.7.0.1
Starting     scientific-0.3.6.2
Building     scientific-0.3.6.2
Completed    scientific-0.3.6.2
Starting     formatting-6.3.7
Building     formatting-6.3.7
Completed    formatting-6.3.7
Starting     fmt-0.6.1.2
Building     fmt-0.6.1.2
Completed    fmt-0.6.1.2
Starting     enum-text-0.5.2.0
Building     enum-text-0.5.2.0
Failed to install enum-text-0.5.2.0
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/enum-text-0.5.2.0-Ee332ENAlZ42x8VM2x8rta.log ):
cabal: Entering directory '/tmp/cabal-tmp-14429/enum-text-0.5.2.0'
Configuring enum-text-0.5.2.0...
Preprocessing library for enum-text-0.5.2.0..
Building library for enum-text-0.5.2.0..
[1 of 2] Compiling Paths_enum_text  ( dist/build/autogen/Paths_enum_text.hs, dist/build/Paths_enum_text.o )
[2 of 2] Compiling Text.Enum.Text   ( src/Text/Enum/Text.hs, dist/build/Text/Enum/Text.o )

src/Text/Enum/Text.hs:97:34: error:
    Ambiguous occurrence ‘fail’
    It could refer to either ‘Prelude.fail’,
                             imported from ‘Prelude’ at src/Text/Enum/Text.hs:8:8-21
                             (and originally defined in ‘GHC.Base’)
                          or ‘Control.Monad.Fail.fail’,
                             imported from ‘Control.Monad.Fail’ at src/Text/Enum/Text.hs:16:1-35
   |
97 |   fromFieldEnumText_ bs = maybe (fail msg) return $ HM.lookup bs hashmap_b
   |                                  ^^^^
cabal: Leaving directory '/tmp/cabal-tmp-14429/enum-text-0.5.2.0'
cabal: Error: some packages failed to install:
enum-text-0.5.2.0-Ee332ENAlZ42x8VM2x8rta failed during the building phase. The
exception was:
ExitFailure 1