release-haskell.nix: don't build musl integer-simple GHC 8.8.4

pkgs/top-level/release-haskell.nix

@@ -243,7 +243,9 @@ let
       elmPackages.elm = pkgsPlatforms.elmPackages.elm;
 
       # GHCs linked to musl.
-      pkgsMusl.haskell.compiler = packagePlatforms pkgs.pkgsMusl.haskell.compiler // {
+      pkgsMusl.haskell.compiler = lib.recursiveUpdate
+        (packagePlatforms pkgs.pkgsMusl.haskell.compiler)
+        {
           # remove musl ghc865Binary since it is known to be broken and
           # causes an evaluation error on darwin.
           # TODO: remove ghc865Binary altogether and use ghc8102Binary
@@ -251,6 +253,9 @@ let
 
           ghcjs = {};
           ghcjs810 = {};
+
+          # Can't be built with musl, see meta.broken comment in the drv
+          integer-simple.ghc884 = {};
         };
 
       # Get some cache going for MUSL-enabled GHC.