Warning: The install command is a part of the legacy v1 style of cabal usage.

Please switch to using either the new project style and the new-install
command or the legacy v1-install alias as new-style projects will become the
default in the next version of cabal-install. Please file a bug if you cannot
replicate a working v1- use case with the new-style commands.

For more information, see: https://wiki.haskell.org/Cabal/NewBuild

Resolving dependencies...
Starting     hsndfile-0.8.0
Starting     exceptions-0.10.4
Starting     hashable-1.3.0.0
Starting     primitive-0.7.0.0
Building     hashable-1.3.0.0
Building     exceptions-0.10.4
Building     primitive-0.7.0.0
Failed to install hsndfile-0.8.0
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/hsndfile-0.8.0-LltGx5fLB4OBhPirCxmy3l.log ):
cabal: Entering directory '/tmp/cabal-tmp-635/hsndfile-0.8.0'
Configuring hsndfile-0.8.0...
cabal: Missing dependency on a foreign library:
* Missing (or bad) C library: sndfile
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-635/hsndfile-0.8.0'
Starting     split-0.2.3.3
Building     split-0.2.3.3
Completed    split-0.2.3.3
Completed    hashable-1.3.0.0
Completed    exceptions-0.10.4
Completed    primitive-0.7.0.0
cabal: Error: some packages failed to install:
conduit-audio-sndfile-0.1.2.2-IiQiBTALNe7Y642J6e6cG depends on
conduit-audio-sndfile-0.1.2.2 which failed to install.
hsndfile-0.8.0-LltGx5fLB4OBhPirCxmy3l failed during the configure step. The
exception was:
ExitFailure 1
hsndfile-vector-0.5.2-6qK9EJpo5tpDeN2nBi8xeB depends on hsndfile-vector-0.5.2
which failed to install.