{ fetchurl }:

fetchurl {
  url = "https://github.com/commercialhaskell/all-cabal-hashes/archive/fcb0ed924c8504d54870d6dc2092b9dab8305732.tar.gz";
  sha256 = "0b7dxgj40y9svddrx14scnxls20ww4f717zhz3lwigb16dm4crpi";
}
