Resolving dependencies...
Starting     primitive-0.7.0.1
Building     primitive-0.7.0.1
Completed    primitive-0.7.0.1
Starting     vector-0.12.1.2
Building     vector-0.12.1.2
Completed    vector-0.12.1.2
Starting     earcut-0.1.0.0
Building     earcut-0.1.0.0
Failed to install earcut-0.1.0.0
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/earcut-0.1.0.0-EFohZkDVqCtEl77oMbHHko.log ):
cabal: Entering directory '/tmp/cabal-tmp-29603/earcut-0.1.0.0'
Configuring earcut-0.1.0.0...
Preprocessing library for earcut-0.1.0.0..
Building library for earcut-0.1.0.0..
[1 of 1] Compiling Geometry.Earcut  ( src/Geometry/Earcut.hs, dist/build/Geometry/Earcut.o )

cbits/binding.cpp:2:10: error:
     fatal error: earcut.hpp: No such file or directory
     #include "earcut.hpp"
              ^~~~~~~~~~~~
  |
2 | #include "earcut.hpp"
  |          ^
compilation terminated.
`gcc' failed in phase `C Compiler'. (Exit code: 1)
cabal: Leaving directory '/tmp/cabal-tmp-29603/earcut-0.1.0.0'
cabal: Error: some packages failed to install:
earcut-0.1.0.0-EFohZkDVqCtEl77oMbHHko failed during the building phase. The
exception was:
ExitFailure 1