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
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Resolving dependencies...
Starting     random-1.1
Starting     ghc-paths-0.1.0.9
Starting     network-2.8.0.0
Starting     syb-0.7
Building     random-1.1
Building     syb-0.7
Building     ghc-paths-0.1.0.9
Building     network-2.8.0.0
Completed    random-1.1
Completed    syb-0.7
Completed    ghc-paths-0.1.0.9
Completed    network-2.8.0.0
Downloading  intero-0.1.38
Downloaded   intero-0.1.38
Starting     intero-0.1.38
Building     intero-0.1.38
Failed to install intero-0.1.38
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/intero-0.1.38-AtJFbIPypNaCUY9GvOY1sj.log ):
cabal: Entering directory '/tmp/cabal-tmp-22557/intero-0.1.38'
Configuring intero-0.1.38...
Preprocessing executable 'intero' for intero-0.1.38..
Building executable 'intero' for intero-0.1.38..
[ 1 of 10] Compiling Intero.Compat    ( src/Intero/Compat.hs, dist/build/intero/intero-tmp/Intero/Compat.o )
[ 2 of 10] Compiling GhciTypes        ( src/GhciTypes.hs, dist/build/intero/intero-tmp/GhciTypes.o )
[ 3 of 10] Compiling GhciMonad        ( src/GhciMonad.hs, dist/build/intero/intero-tmp/GhciMonad.o )
[ 4 of 10] Compiling GhciTags         ( src/GhciTags.hs, dist/build/intero/intero-tmp/GhciTags.o )
[ 5 of 10] Compiling GhciInfo         ( src/GhciInfo.hs, dist/build/intero/intero-tmp/GhciInfo.o )
[ 6 of 10] Compiling GhciFind         ( src/GhciFind.hs, dist/build/intero/intero-tmp/GhciFind.o )
[ 7 of 10] Compiling Completion       ( src/Completion.hs, dist/build/intero/intero-tmp/Completion.o )
[ 8 of 10] Compiling Paths_intero     ( dist/build/intero/autogen/Paths_intero.hs, dist/build/intero/intero-tmp/Paths_intero.o )
[ 9 of 10] Compiling InteractiveUI    ( src/InteractiveUI.hs, dist/build/intero/intero-tmp/InteractiveUI.o )

src/InteractiveUI.hs:116:1: warning: [-Wdeprecations]
    Module ‘Network’ is deprecated:
      The high level Network interface is no longer supported. Please use Network.Socket.
    |
116 | import qualified Network
    | ^^^^^^^^^^^^^^^^^^^^^^^^

src/InteractiveUI.hs:117:1: warning: [-Wdeprecations]
    Module ‘Network.BSD’ is deprecated:
      This platform dependent module is no longer supported.
    |
117 | import Network.BSD
    | ^^^^^^^^^^^^^^^^^^

src/InteractiveUI.hs:695:32: warning: [-Wdeprecations]
    In the use of ‘accept’ (imported from Network):
    Deprecated: "The high level Network interface is no longer supported. Please use Network.Socket."
    |
695 |                   (h, _, _) <- Network.accept sock
    |                                ^^^^^^^^^^^^^^

src/InteractiveUI.hs:731:12: warning: [-Wdeprecations]
    In the use of ‘getProtocolNumber’ (imported from Network.BSD):
    Deprecated: "This platform dependent module is no longer supported."
    |
731 |   proto <- getProtocolNumber "tcp"
    |            ^^^^^^^^^^^^^^^^^

src/InteractiveUI.hs:737:19: warning: [-Wdeprecations]
    In the use of ‘getHostByName’ (imported from Network.BSD):
    Deprecated: "This platform dependent module is no longer supported."
    |
737 |        address <- getHostByName "127.0.0.1"
    |                   ^^^^^^^^^^^^^

src/InteractiveUI.hs:738:32: warning: [-Wdeprecations]
    In the use of ‘aNY_PORT’ (imported from Network.Socket):
    Deprecated: "Use defaultPort instead"
    |
738 |        bind sock (SockAddrInet aNY_PORT (hostAddress address))
    |                                ^^^^^^^^

src/InteractiveUI.hs:738:42: warning: [-Wdeprecations]
    In the use of ‘hostAddress’ (imported from Network.BSD):
    Deprecated: "This platform dependent module is no longer supported."
    |
738 |        bind sock (SockAddrInet aNY_PORT (hostAddress address))
    |                                          ^^^^^^^^^^^
[10 of 10] Compiling Main             ( src/Main.hs, dist/build/intero/intero-tmp/Main.o )
Linking dist/build/intero/intero ...
/usr/bin/ld.gold: error: cannot find -ltinfo
collect2: error: ld returned 1 exit status
`gcc' failed in phase `Linker'. (Exit code: 1)
cabal: Leaving directory '/tmp/cabal-tmp-22557/intero-0.1.38'
cabal: Error: some packages failed to install:
intero-0.1.38-AtJFbIPypNaCUY9GvOY1sj failed during the building phase. The
exception was:
ExitFailure 1