kord: fix build due to changed compiler features

The rust feature `no_coverage` has been replaced by one called
`coverage_attribute` (and respective `#[no_coverage]` declarations
must now be annotated as `#[coverage(off)]`. Because of this, the
build of `kord` fails on current versions of the Rust compiler.

Upstream has already resolved these issues [1], but there haven't
been any new releases since these fixes have been committed to
trunk. This change pulls the respective patch in using `fetchpatch`
for now -- this patch should be removable with the next release.

[1]: fa9bb979b1

pkgs/applications/misc/kord/default.nix

@@ -2,6 +2,7 @@
 , stdenv
 , darwin
 , fetchFromGitHub
+, fetchpatch
 , rustPlatform
 , pkg-config
 , alsa-lib
@@ -28,6 +29,17 @@ rustPlatform.buildRustPackage rec {
     };
   };
 
+  patches = [
+    # Fixes build issues due to refactored Rust compiler feature annotations.
+    # Should be removable with the next release after v. 0.6.1.
+    (fetchpatch {
+      name = "fix-rust-features.patch";
+      url = "https://github.com/twitchax/kord/commit/fa9bb979b17d77f54812a915657c3121f76c5d82.patch";
+      hash = "sha256-XQu9P7372J2dHWzvpvbPtALS0Bh8EC+J1EyG3qlak2M=";
+      excludes = [ "Cargo.*" ];
+    })
+  ];
+
   nativeBuildInputs = lib.optionals stdenv.isLinux [ pkg-config ]
     ++ lib.optionals stdenv.isDarwin [ rustPlatform.bindgenHook ];