Resolving dependencies... Build profile: -w ghc-9.2.4 -O0 In order, the following will be built (use -v for more details): - ad-delcont-0.5.0.0 (first run) Configuring ad-delcont-0.5.0.0... Preprocessing library for ad-delcont-0.5.0.0.. Building library for ad-delcont-0.5.0.0.. [1 of 2] Compiling Numeric.AD.DelCont.Internal ( src/Numeric/AD/DelCont/Internal.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/ad-delcont-0.5.0.0/noopt/build/Numeric/AD/DelCont/Internal.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/ad-delcont-0.5.0.0/noopt/build/Numeric/AD/DelCont/Internal.dyn_o ) [2 of 2] Compiling Numeric.AD.DelCont ( src/Numeric/AD/DelCont.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/ad-delcont-0.5.0.0/noopt/build/Numeric/AD/DelCont.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/ad-delcont-0.5.0.0/noopt/build/Numeric/AD/DelCont.dyn_o ) Preprocessing test suite 'spec' for ad-delcont-0.5.0.0.. Building test suite 'spec' for ad-delcont-0.5.0.0.. ghc: could not execute: hspec-discover