# Pastebin 0oUu8XDe
trace: gitSource.nix: /nix/store/s9mnw05bbyh58n8q2rwc703gnc2qgfl3-source/backend/haskell does not seem to be a git repository,
assuming it is a clean checkout.
trace: Using latest index state for todo-haskell!
trace: Using index-state: 2020-10-30T00:00:00Z for todo-haskell
error: --- Error -------------------------------------------------- nix
builder for '/nix/store/jz2pfk45xfv9kmjh9b5k1v35mh39j4vj-todo-haskell-plan-to-nix-pkgs.drv' failed with exit code 1; last 3 log lines:
  cabal: Cannot find the program 'ghc'. User-specified path 'ghc-8.8.4' does not
  refer to an executable and the program is not on the system path.
  
(use '--show-trace' to show detailed location information)