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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replicate a working v1- use case with the new-style commands.

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Resolving dependencies...
Downloading  symbols-0.2.0.0
Downloaded   symbols-0.2.0.0
Starting     symbols-0.2.0.0
Building     symbols-0.2.0.0
Failed to install symbols-0.2.0.0
Build log ( /home/builder/.cabal/logs/ghc-8.6.1/symbols-0.2.0.0-7w0QWFm9oznG5kUBzP3kvw.log ):
cabal: Entering directory '/tmp/cabal-tmp-2927/symbols-0.2.0.0'
Configuring symbols-0.2.0.0...
Preprocessing library for symbols-0.2.0.0..
Building library for symbols-0.2.0.0..
[1 of 3] Compiling Data.Symbol.Ascii ( src/Data/Symbol/Ascii.hs, dist/build/Data/Symbol/Ascii.o )

src/Data/Symbol/Ascii.hs:136:41: error:
    • Expected kind ‘* -> Nat -> Nat’, but ‘acc’ has kind ‘Nat’
    • In the first argument of ‘(+)’, namely ‘acc * 10’
      In the second argument of ‘ReadNat1’, namely
        ‘(acc * 10 + ReadDigit x)’
      In the type ‘ReadNat1 xs (acc * 10 + ReadDigit x)’
    |
136 |   ReadNat1 (x ': xs) acc = ReadNat1 xs (acc * 10 + ReadDigit x)
    |                                         ^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-2927/symbols-0.2.0.0'
cabal: Error: some packages failed to install:
symbols-0.2.0.0-7w0QWFm9oznG5kUBzP3kvw failed during the building phase. The
exception was:
ExitFailure 1