Resolving dependencies...
Starting     bindings-DSL-1.0.25
Building     bindings-DSL-1.0.25
Completed    bindings-DSL-1.0.25
Starting     netcode-io-0.0.2
Failed to install netcode-io-0.0.2
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/netcode-io-0.0.2-3ujUNkd9sliAktNQpC45q6.log ):
cabal: Entering directory '/tmp/cabal-tmp-7561/netcode-io-0.0.2'
Configuring netcode-io-0.0.2...
cabal: Missing dependency on a foreign library:
* Missing (or bad) C library: sodium
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-7561/netcode-io-0.0.2'
cabal: Error: some packages failed to install:
netcode-io-0.0.2-3ujUNkd9sliAktNQpC45q6 failed during the configure step. The
exception was:
ExitFailure 1