Bug#1014023: haskell-text-conversions FTBFS: error: Couldn't match expected type

[Adrian Bunk]

Source: haskell-text-conversions
Version: 0.3.0-3
Severity: serious
Tags: ftbfs bookworm sid

https://buildd.debian.org/status/package.php?p=haskell-text-conversions&suite=sid

...
src/Data/Text/Conversions.hs:152:5: error:
    • Couldn't match expected type: Either String B.ByteString
                  with actual type: (B.ByteString, a3)
    • In the pattern: (bs, "")
      In a case alternative: (bs, "") -> Just $ Base16 bs
      In the expression:
        case Base16.decode (T.encodeUtf8 txt) of
          (bs, "") -> Just $ Base16 bs
          (_, _) -> Nothing
    |
152 |     (bs, "") -> Just $ Base16 bs
    |     ^^^^^^^^

src/Data/Text/Conversions.hs:153:5: error:
    • Couldn't match expected type: Either String B.ByteString
                  with actual type: (a2, b1)
    • In the pattern: (_, _)
      In a case alternative: (_, _) -> Nothing
      In the expression:
        case Base16.decode (T.encodeUtf8 txt) of
          (bs, "") -> Just $ Base16 bs
          (_, _) -> Nothing
    |
153 |     (_,  _)  -> Nothing
    |     ^^^^^^^

src/Data/Text/Conversions.hs:164:5: error:
    • Couldn't match expected type: Either String BL.ByteString
                  with actual type: (BL.ByteString, a1)
    • In the pattern: (bs, "")
      In a case alternative: (bs, "") -> Just $ Base16 bs
      In the expression:
        case Base16L.decode (TL.encodeUtf8 $ TL.fromStrict txt) of
          (bs, "") -> Just $ Base16 bs
          (_, _) -> Nothing
    |
164 |     (bs, "") -> Just $ Base16 bs
    |     ^^^^^^^^

src/Data/Text/Conversions.hs:165:5: error:
    • Couldn't match expected type: Either String BL.ByteString
                  with actual type: (a0, b0)
    • In the pattern: (_, _)
      In a case alternative: (_, _) -> Nothing
      In the expression:
        case Base16L.decode (TL.encodeUtf8 $ TL.fromStrict txt) of
          (bs, "") -> Just $ Base16 bs
          (_, _) -> Nothing
    |
165 |     (_,  _)  -> Nothing
    |     ^^^^^^^
 at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 107.
	Debian::Debhelper::Buildsystem::Haskell::Recipes::run_quiet("debian/hlibrary.setup", "haddock", "--builddir=dist-ghc", "--with-haddock=/usr/bin/haddock", "--with-ghc=ghc", "--verbose=2", "--html", "--hoogle", ...) called at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 131
	Debian::Debhelper::Buildsystem::Haskell::Recipes::run("debian/hlibrary.setup", "haddock", "--builddir=dist-ghc", "--with-haddock=/usr/bin/haddock", "--with-ghc=ghc", "--verbose=2", "--html", "--hoogle", ...) called at /usr/share/perl5/Debian/Debhelper/Buildsystem/Haskell/Recipes.pm line 707
	Debian::Debhelper::Buildsystem::Haskell::Recipes::haddock_recipe() called at -e line 1
make: *** [/usr/share/cdbs/1/class/hlibrary.mk:153: build-ghc-stamp] Error 25