nls: disable checks on Darwin

Workaround to address build issue introduced in 1.1.1 update.

pkgs/development/tools/language-servers/nls/default.nix

@@ -1,6 +1,7 @@
 { lib
 , rustPlatform
 , nickel
+, stdenv
 }:
 
 rustPlatform.buildRustPackage {
@@ -12,6 +13,9 @@ rustPlatform.buildRustPackage {
 
   cargoBuildFlags = [ "-p nickel-lang-lsp" ];
 
+  # Disable checks on Darwin because of issue described in https://github.com/tweag/nickel/pull/1454
+  doCheck = !stdenv.isDarwin;
+
   meta = {
     inherit (nickel.meta) homepage changelog license maintainers;
     description = "A language server for the Nickel programming language";