| nix why-depends /nix/store/xc57ianhb98v27lzvrxb0vhzw88c4nw8-ghcjs-8.4.0.1-with-packages.drv /nix/store/pk4qw3jk66662bcwpfw4xxn264fvg4a6-doctest-0.16.0.drv
builder for '/nix/store/pk4qw3jk66662bcwpfw4xxn264fvg4a6-doctest-0.16.0.drv' failed with exit code 1; last 10 log lines:
     |
  13 | import           Panic (throwGhcException)
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  src/GhcUtil.hs:15:1: error:
      Could not find module ‘MonadUtils’
      Use -v to see a list of the files searched for.
     |
  15 | import           MonadUtils (liftIO)
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
cannot build derivation '/nix/store/wb1a66qlvxw0vff0xlwk4j5wq968gh0r-comonad-5.0.4.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/1bzxs32s9ii2xwi4qhcfh6rly8h4hkli-lens-4.16.1.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/bvlkap0z1frsmiawphm12jrbrdjny2v2-semigroupoids-5.2.2.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/xc57ianhb98v27lzvrxb0vhzw88c4nw8-ghcjs-8.4.0.1-with-packages.drv': 1 dependencies couldn't be built
[0 built (1 failed)]
error: build of '/nix/store/xc57ianhb98v27lzvrxb0vhzw88c4nw8-ghcjs-8.4.0.1-with-packages.drv' failed