Resolving dependencies...
Starting     containers-0.6.6
Building     containers-0.6.6
Completed    containers-0.6.6
Starting     indexed-traversable-0.1.2
Building     indexed-traversable-0.1.2
Completed    indexed-traversable-0.1.2
Starting     hcdt-0.1.0.0
Building     hcdt-0.1.0.0
Failed to install hcdt-0.1.0.0
Build log ( /home/builder/.cabal/logs/ghc-8.10.2/hcdt-0.1.0.0-HJhuv2efVzz6Ed7I4eeyUh.log ):
cabal: Entering directory '/tmp/cabal-tmp-12060/hcdt-0.1.0.0'
Configuring hcdt-0.1.0.0...
Preprocessing library for hcdt-0.1.0.0..
Building library for hcdt-0.1.0.0..
[1 of 5] Compiling Geometry.HCDT.Types ( src/Geometry/HCDT/Types.hs, dist/build/Geometry/HCDT/Types.o, dist/build/Geometry/HCDT/Types.dyn_o )
[2 of 5] Compiling Geometry.HCDT.Triangulation ( src/Geometry/HCDT/Triangulation.hs, dist/build/Geometry/HCDT/Triangulation.o, dist/build/Geometry/HCDT/Triangulation.dyn_o )
[3 of 5] Compiling Geometry.HCDT.Delaunay ( src/Geometry/HCDT/Delaunay.hs, dist/build/Geometry/HCDT/Delaunay.o, dist/build/Geometry/HCDT/Delaunay.dyn_o )
[4 of 5] Compiling Geometry.HCDT.Utils ( src/Geometry/HCDT/Utils.hs, dist/build/Geometry/HCDT/Utils.o, dist/build/Geometry/HCDT/Utils.dyn_o )
[5 of 5] Compiling Geometry.HCDT    ( src/Geometry/HCDT.hs, dist/build/Geometry/HCDT.o, dist/build/Geometry/HCDT.dyn_o )

cpp/hcdt.cpp:3:10: error:
     fatal error: hcdt.hpp: No such file or directory
     #include "hcdt.hpp"
              ^~~~~~~~~~
  |
3 | #include "hcdt.hpp"
  |          ^
compilation terminated.
`cc' failed in phase `C Compiler'. (Exit code: 1)
cabal: Leaving directory '/tmp/cabal-tmp-12060/hcdt-0.1.0.0'
cabal: Error: some packages failed to install:
hcdt-0.1.0.0-HJhuv2efVzz6Ed7I4eeyUh failed during the building phase. The
exception was:
ExitFailure 1