Resolving dependencies...
Starting     simple-affine-space-0.1.1
Starting     base-orphans-0.8.4
Starting     primitive-0.7.1.0
Starting     splitmix-0.1.0.3
Building     simple-affine-space-0.1.1
Building     base-orphans-0.8.4
Building     splitmix-0.1.0.3
Building     primitive-0.7.1.0
Completed    splitmix-0.1.0.3
Starting     transformers-compat-0.6.6
Completed    simple-affine-space-0.1.1
Starting     random-1.2.0
Building     transformers-compat-0.6.6
Building     random-1.2.0
Completed    base-orphans-0.8.4
Starting     storable-complex-0.2.3.0
Building     storable-complex-0.2.3.0
Completed    transformers-compat-0.6.6
Starting     transformers-base-0.4.5.2
Completed    storable-complex-0.2.3.0
Building     transformers-base-0.4.5.2
Completed    transformers-base-0.4.5.2
Completed    random-1.2.0
Completed    primitive-0.7.1.0
Starting     MonadRandom-0.5.2
Starting     vector-0.12.2.0
Building     MonadRandom-0.5.2
Building     vector-0.12.2.0
Completed    MonadRandom-0.5.2
Starting     dunai-0.7.0
Building     dunai-0.7.0
Completed    dunai-0.7.0
Completed    vector-0.12.2.0
Starting     vector-fftw-0.1.4.0
Failed to install vector-fftw-0.1.4.0
Build log ( /home/builder/.cabal/logs/ghc-8.10.2/vector-fftw-0.1.4.0-DG0GrwpR3RqJVTj15vbNPf.log ):
cabal: Entering directory '/tmp/cabal-tmp-19324/vector-fftw-0.1.4.0'
Configuring vector-fftw-0.1.4.0...
cabal: Missing dependency on a foreign library:
* Missing (or bad) C library: fftw3
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.If the
library file does exist, it may contain errors that are caught by the C
compiler at the preprocessing stage. In this case you can re-run configure
with the verbosity flag -v3 to see the error messages.

cabal: Leaving directory '/tmp/cabal-tmp-19324/vector-fftw-0.1.4.0'
cabal: Error: some packages failed to install:
vector-fftw-0.1.4.0-DG0GrwpR3RqJVTj15vbNPf failed during the configure step.
The exception was:
ExitFailure 1
vocoder-0.1.0.0-7j3bSGJgUoUHuRRY4UqaKl depends on vocoder-0.1.0.0 which failed
to install.
vocoder-dunai-0.1.0.0-5CrtB7JgnGwKebUOlD5aja depends on vocoder-dunai-0.1.0.0
which failed to install.