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     hashable-1.3.0.0
Starting     syb-0.7.1
Building     syb-0.7.1
Building     hashable-1.3.0.0
Completed    hashable-1.3.0.0
Starting     unordered-containers-0.2.10.0
Completed    syb-0.7.1
Building     unordered-containers-0.2.10.0
Completed    unordered-containers-0.2.10.0
Starting     uniplate-1.6.12
Building     uniplate-1.6.12
Completed    uniplate-1.6.12
Starting     ghc-lib-parser-ex-8.10.0.1
Building     ghc-lib-parser-ex-8.10.0.1
Failed to install ghc-lib-parser-ex-8.10.0.1
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/ghc-lib-parser-ex-8.10.0.1-Ei7kuaP67Vt9bGTZNwZ8RF.log ):
cabal: Entering directory '/tmp/cabal-tmp-16599/ghc-lib-parser-ex-8.10.0.1'
Configuring ghc-lib-parser-ex-8.10.0.1...
Preprocessing library for ghc-lib-parser-ex-8.10.0.1..
Building library for ghc-lib-parser-ex-8.10.0.1..

In file included from src/Language/Haskell/GhclibParserEx/Config.hs:7:0: error:
    

cbits/ghclib_api.h:28:10: error:
     error: #error Unsupported GHC API version
     #        error Unsupported GHC API version
              ^~~~~
   |
28 | #        error Unsupported GHC API version
   |          ^
`gcc' failed in phase `C pre-processor'. (Exit code: 1)
cabal: Leaving directory '/tmp/cabal-tmp-16599/ghc-lib-parser-ex-8.10.0.1'
cabal: Error: some packages failed to install:
ghc-lib-parser-ex-8.10.0.1-Ei7kuaP67Vt9bGTZNwZ8RF failed during the building
phase. The exception was:
ExitFailure 1