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     entropy-0.4.1.5
Starting     base16-bytestring-0.1.1.6
Starting     cereal-0.5.8.1
Starting     hashable-1.3.0.0
Building     base16-bytestring-0.1.1.6
Building     cereal-0.5.8.1
Building     hashable-1.3.0.0
Completed    base16-bytestring-0.1.1.6
Starting     random-1.1
Building     random-1.1
Building     entropy-0.4.1.5
Completed    hashable-1.3.0.0
Starting     utf8-string-1.0.1.1
Building     utf8-string-1.0.1.1
Completed    entropy-0.4.1.5
Completed    random-1.1
Starting     splitmix-0.0.3
Building     splitmix-0.0.3
Completed    cereal-0.5.8.1
Completed    splitmix-0.0.3
Starting     QuickCheck-2.13.2
Completed    utf8-string-1.0.1.1
Starting     string-conversions-0.4.0.1
Building     QuickCheck-2.13.2
Building     string-conversions-0.4.0.1
Completed    string-conversions-0.4.0.1
Completed    QuickCheck-2.13.2
Starting     secp256k1-haskell-0.1.5
Failed to install secp256k1-haskell-0.1.5
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/secp256k1-haskell-0.1.5-J4Ts91XWoOMHseQNE65LP1.log ):
cabal: Entering directory '/tmp/cabal-tmp-7073/secp256k1-haskell-0.1.5'
Configuring secp256k1-haskell-0.1.5...
cabal: Missing dependency on a foreign library:
* Missing (or bad) C library: secp256k1
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-7073/secp256k1-haskell-0.1.5'
cabal: Error: some packages failed to install:
secp256k1-haskell-0.1.5-J4Ts91XWoOMHseQNE65LP1 failed during the configure
step. The exception was:
ExitFailure 1