nushell: 0.19.0 -> 0.20.0

https://www.nushell.sh/blog/2020/09/22/nushell_0_20.html

pkgs/shells/nushell/default.nix

@@ -3,6 +3,7 @@
 , fetchFromGitHub
 , rustPlatform
 , openssl
+, zlib
 , pkg-config
 , python3
 , xorg
@@ -14,35 +15,36 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "nushell";
-  version = "0.19.0";
+  version = "0.20.0";
 
   src = fetchFromGitHub {
     owner = pname;
     repo = pname;
     rev = version;
-    sha256 = "08r6f71cy4j22k0mllm134x4dfixaircpaz5arrj93xsbp38nk92";
+    sha256 = "038c61605b92a97h84hlifwks0q6miv6rn7spr5h6h2nwvaqlyk6";
   };
 
-  cargoSha256 = "15kvl490abxdv6706zs7pv0q5fhghmdvlfbn19037sldkcsfl86b";
+  cargoSha256 = "1vr0pqcv9gm4cwlkd06672jzz9rbm77c6j5r05waypc1lv4ln2cg";
 
   nativeBuildInputs = [ pkg-config ]
     ++ lib.optionals (withStableFeatures && stdenv.isLinux) [ python3 ];
 
-  buildInputs = lib.optionals stdenv.isLinux [ openssl ]
-    ++ lib.optionals stdenv.isDarwin [ libiconv Security ]
+  buildInputs = [ openssl ]
+    ++ lib.optionals stdenv.isDarwin [ zlib libiconv Security ]
     ++ lib.optionals (withStableFeatures && stdenv.isLinux) [ xorg.libX11 ]
     ++ lib.optionals (withStableFeatures && stdenv.isDarwin) [ AppKit ];
 
   cargoBuildFlags = lib.optional withStableFeatures "--features stable";
 
-  preCheck = ''
-    export HOME=$TMPDIR
+  # Remove after https://github.com/NixOS/nixpkgs/pull/97000 lands into master
+  preConfigure = stdenv.lib.optionalString stdenv.isDarwin ''
+    unset SDKROOT
   '';
 
   checkPhase = ''
     runHook preCheck
     echo "Running cargo test"
-    cargo test
+    HOME=$TMPDIR cargo test
     runHook postCheck
   '';