Resolving dependencies...
Build profile: -w ghc-9.6.3 -O0
In order, the following will be built (use -v for more details):
 - mixed-types-num-0.6.2 (lib:mixed-types-num) (requires build)
 - aern2-mp-0.2.16.1 (lib:aern2-mp) (requires build)
 - aern2-real-0.2.16.1 (first run)
Starting     mixed-types-num-0.6.2 (all, legacy fallback)
Building     mixed-types-num-0.6.2 (all, legacy fallback)
Installing   mixed-types-num-0.6.2 (all, legacy fallback)
Completed    mixed-types-num-0.6.2 (all, legacy fallback)
Starting     aern2-mp-0.2.16.1 (all, legacy fallback)
Building     aern2-mp-0.2.16.1 (all, legacy fallback)
Installing   aern2-mp-0.2.16.1 (all, legacy fallback)
Completed    aern2-mp-0.2.16.1 (all, legacy fallback)
Configuring aern2-real-0.2.16.1...
Preprocessing library for aern2-real-0.2.16.1..
Building library for aern2-real-0.2.16.1..
[ 1 of 14] Compiling AERN2.Real.Type  ( src/AERN2/Real/Type.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Type.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Type.dyn_o )
[ 2 of 14] Compiling AERN2.Real.Limit ( src/AERN2/Real/Limit.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Limit.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Limit.dyn_o )
[ 3 of 14] Compiling AERN2.Real.CKleenean ( src/AERN2/Real/CKleenean.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/CKleenean.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/CKleenean.dyn_o )
[ 4 of 14] Compiling AERN2.Real.Comparisons ( src/AERN2/Real/Comparisons.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Comparisons.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Comparisons.dyn_o )
[ 5 of 14] Compiling AERN2.Real.FieldTH ( src/AERN2/Real/FieldTH.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/FieldTH.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/FieldTH.dyn_o )
[ 6 of 14] Compiling AERN2.Real.Field ( src/AERN2/Real/Field.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Field.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Field.dyn_o )
[ 7 of 14] Compiling AERN2.Real.Elementary ( src/AERN2/Real/Elementary.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Elementary.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Elementary.dyn_o )
[ 8 of 14] Compiling AERN2.Real.Tests ( src/AERN2/Real/Tests.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Tests.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Tests.dyn_o )
[ 9 of 14] Compiling AERN2.Real       ( src/AERN2/Real.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real.dyn_o )
[10 of 14] Compiling AERN2.Real.Examples.Introduction ( examples/AERN2/Real/Examples/Introduction.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Examples/Introduction.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Examples/Introduction.dyn_o )
[11 of 14] Compiling AERN2.Real.Examples.ClosestPairDist ( examples/AERN2/Real/Examples/ClosestPairDist.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Examples/ClosestPairDist.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Real/Examples/ClosestPairDist.dyn_o )
[12 of 14] Compiling AERN2.Complex    ( src/AERN2/Complex.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Complex.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Complex.dyn_o )
[13 of 14] Compiling AERN2.Continuity.Principles ( src/AERN2/Continuity/Principles.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Continuity/Principles.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/AERN2/Continuity/Principles.dyn_o )
[14 of 14] Compiling Paths_aern2_real ( /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/autogen/Paths_aern2_real.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/Paths_aern2_real.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.6.3/aern2-real-0.2.16.1/noopt/build/Paths_aern2_real.dyn_o )
Preprocessing test suite 'aern2-real-test' for aern2-real-0.2.16.1..
Building test suite 'aern2-real-test' for aern2-real-0.2.16.1..
ghc-9.6.3: could not execute: hspec-discover