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     erf-2.0.0.0
Starting     primitive-0.6.4.0
Building     erf-2.0.0.0
Building     primitive-0.6.4.0
Completed    erf-2.0.0.0
Starting     random-1.1
Building     random-1.1
Completed    random-1.1
Completed    primitive-0.6.4.0
Starting     tf-random-0.5
Building     tf-random-0.5
Completed    tf-random-0.5
Starting     QuickCheck-2.12.6.1
Building     QuickCheck-2.12.6.1
Completed    QuickCheck-2.12.6.1
Starting     microspec-0.2.1.0
Building     microspec-0.2.1.0
Failed to install microspec-0.2.1.0
Build log ( /home/builder/.cabal/logs/ghc-8.6.1/microspec-0.2.1.0-GYKnS2x2H8N5AmBJxNLsAn.log ):
cabal: Entering directory '/tmp/cabal-tmp-31096/microspec-0.2.1.0'
Configuring microspec-0.2.1.0...
Preprocessing library for microspec-0.2.1.0..
Building library for microspec-0.2.1.0..
[1 of 1] Compiling Test.Microspec   ( Test/Microspec.hs, dist/build/Test/Microspec.o )

Test/Microspec.hs:284:10: error:
    • No instance for (Semigroup ResultCounts)
        arising from the superclasses of an instance declaration
    • In the instance declaration for ‘Monoid ResultCounts’
    |
284 | instance Monoid ResultCounts where
    |          ^^^^^^^^^^^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-31096/microspec-0.2.1.0'
cabal: Error: some packages failed to install:
microspec-0.2.1.0-GYKnS2x2H8N5AmBJxNLsAn failed during the building phase. The
exception was:
ExitFailure 1