Resolving dependencies... Build profile: -w ghc-9.6.3 -O0 In order, the following will be built (use -v for more details): - text-manipulate-0.3.1.0 (lib:text-manipulate) (requires build) - pure-sum-0.1.0.0 (lib:pure-sum) (requires build) - pure-sum-aeson-0.1.0.0 (first run) Starting text-manipulate-0.3.1.0 (all, legacy fallback) Building text-manipulate-0.3.1.0 (all, legacy fallback) Installing text-manipulate-0.3.1.0 (all, legacy fallback) Completed text-manipulate-0.3.1.0 (all, legacy fallback) Starting pure-sum-0.1.0.0 (all, legacy fallback) Building pure-sum-0.1.0.0 (all, legacy fallback) Installing pure-sum-0.1.0.0 (all, legacy fallback) Completed pure-sum-0.1.0.0 (all, legacy fallback) Configuring pure-sum-aeson-0.1.0.0... Preprocessing library for pure-sum-aeson-0.1.0.0.. Building library for pure-sum-aeson-0.1.0.0.. [1 of 2] Compiling Data.Sum.Pure.Aeson ( src/Data/Sum/Pure/Aeson.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/pure-sum-aeson-0.1.0.0/noopt/build/Data/Sum/Pure/Aeson.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/pure-sum-aeson-0.1.0.0/noopt/build/Data/Sum/Pure/Aeson.dyn_o ) [2 of 2] Compiling Paths_pure_sum_aeson ( /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/pure-sum-aeson-0.1.0.0/noopt/build/autogen/Paths_pure_sum_aeson.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/pure-sum-aeson-0.1.0.0/noopt/build/Paths_pure_sum_aeson.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/pure-sum-aeson-0.1.0.0/noopt/build/Paths_pure_sum_aeson.dyn_o ) Preprocessing test suite 'spec' for pure-sum-aeson-0.1.0.0.. Building test suite 'spec' for pure-sum-aeson-0.1.0.0.. ghc-9.6.3: could not execute: hspec-discover