#12.0: Haddocks don't build

Hi there, I noticed that your module docs weren't available on Hackage, so I tried to build them myself. This failed with:

htoml-megaparsec-2.0.0.0: configure      
htoml-megaparsec-2.0.0.0: build       
htoml-megaparsec-2.0.0.0: haddock     
Progress 5/6                          

--  While building custom Setup.hs for package htoml-megaparsec-2.0.0.0 using:
      /home/colin/.stack/setup-exe-cache/x86_64-linux-tinfo6/Cabal-simple_mPHDZzAJ_2.0.1.0_ghc-8.2.2 --builddir=.stack-work/dist/x86_64-linux-tinfo6/Cabal-2.0.1.0 haddock --html --hoogle --html-location=../$pkg-$version/ --haddock-option=--hyperlinked-source
    Process exited with code: ExitFailure 1
    Logs have been written to: /home/colin/code/haskell/aura/.stack-work/logs/htoml-megaparsec-2.0.0.0.log

    Configuring htoml-megaparsec-2.0.0.0...
    Preprocessing library 'htoml-internal' for htoml-megaparsec-2.0.0.0..
    Building library 'htoml-internal' for htoml-megaparsec-2.0.0.0..
    [1 of 3] Compiling Text.Megaparsec.CharRW ( internal/Text/Megaparsec/CharRW.hs, .stack-work/dist/x86_64-linux-tinfo6/Cabal-2.0.1.0/build/htoml-internal/Text/Megaparsec/CharRW.o )
    [2 of 3] Compiling Text.Toml.Types  ( internal/Text/Toml/Types.hs, .stack-work/dist/x86_64-linux-tinfo6/Cabal-2.0.1.0/build/htoml-internal/Text/Toml/Types.o )
    [3 of 3] Compiling Text.Toml.Parser ( internal/Text/Toml/Parser.hs, .stack-work/dist/x86_64-linux-tinfo6/Cabal-2.0.1.0/build/htoml-internal/Text/Toml/Parser.o )
    Preprocessing library for htoml-megaparsec-2.0.0.0..
    Building library for htoml-megaparsec-2.0.0.0..
    [1 of 1] Compiling Text.Toml        ( src/Text/Toml.hs, .stack-work/dist/x86_64-linux-tinfo6/Cabal-2.0.1.0/build/Text/Toml.o )
    
    src/Text/Toml.hs:9:1: warning: [-Wunused-imports]
        The import of ‘Data.Monoid’ is redundant
          except perhaps to import instances from ‘Data.Monoid’
        To import instances alone, use: import Data.Monoid()
      |
    9 | import           Data.Monoid
      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    Preprocessing library 'htoml-internal' for htoml-megaparsec-2.0.0.0..
    Running Haddock on library 'htoml-internal' for htoml-megaparsec-2.0.0.0..
    Haddock coverage:
    Warning: Text.Megaparsec.CharRW: Could not find documentation for exported module: X
       0% (  0 /  3) in 'Text.Megaparsec.CharRW'
      Missing documentation for:
        Module header
        oneOf (internal/Text/Megaparsec/CharRW.hs:30)
        noneOf (internal/Text/Megaparsec/CharRW.hs:26)
      62% (  8 / 13) in 'Text.Toml.Types'
      Missing documentation for:
        Module header
        throwParser (internal/Text/Toml/Types.hs:86)
        Toml (internal/Text/Toml/Types.hs:48)
        TomlM (internal/Text/Toml/Types.hs:46)
        Parser (internal/Text/Toml/Types.hs:44)
      66% ( 21 / 32) in 'Text.Toml.Parser'
      Missing documentation for:
        Module header
        TomlError (internal/Text/Toml/Parser.hs:35)
        boolean (internal/Text/Toml/Parser.hs:149)
        anyStr (internal/Text/Toml/Parser.hs:154)
        anyStr' (internal/Text/Toml/Parser.hs:157)
        basicStr (internal/Text/Toml/Parser.hs:161)
        multiBasicStr (internal/Text/Toml/Parser.hs:167)
        literalStr (internal/Text/Toml/Parser.hs:180)
        multiLiteralStr (internal/Text/Toml/Parser.hs:186)
        datetime (internal/Text/Toml/Parser.hs:195)
        integer (internal/Text/Toml/Parser.hs:218)
    Warning: Text.Toml.Types: could not find link destinations for:
        updateExStateOrError
    Documentation created:
    .stack-work/dist/x86_64-linux-tinfo6/Cabal-2.0.1.0/doc/html/htoml-megaparsec/index.html,
    .stack-work/dist/x86_64-linux-tinfo6/Cabal-2.0.1.0/doc/html/htoml-megaparsec/htoml-megaparsec.txt
    Preprocessing library for htoml-megaparsec-2.0.0.0..
    Running Haddock on library for htoml-megaparsec-2.0.0.0..
    Cabal-simple_mPHDZzAJ_2.0.1.0_ghc-8.2.2: internal error when calculating
    transitive package dependencies.
    Debug info: []

Any ideas? Thank you kindly.