Resolving dependencies...
Configuring utf8-string-1.0.1.1...
Building utf8-string-1.0.1.1...
Installed utf8-string-1.0.1.1
Configuring txt-0.0.0.1...
Building txt-0.0.0.1...
Failed to install txt-0.0.0.1
Build log ( /home/builder/.cabal/logs/ghc-8.2.2/txt-0.0.0.1-EsGWffZNqhIBZxENy6kRO8.log ):
cabal: Entering directory '/tmp/cabal-tmp-2894/txt-0.0.0.1'
Configuring txt-0.0.0.1...
Preprocessing library for txt-0.0.0.1..
Building library for txt-0.0.0.1..
[1 of 1] Compiling Data.Text        ( Data/Text.hs, dist/build/Data/Text.o )

Data/Text.hs:9:22: error:
    Not in scope: type constructor or class ‘Semigroup’
  |
9 |   deriving (Eq, Ord, Semigroup, Monoid)
  |                      ^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-2894/txt-0.0.0.1'
cabal: Error: some packages failed to install:
txt-0.0.0.1-EsGWffZNqhIBZxENy6kRO8 failed during the building phase. The
exception was:
ExitFailure 1