diswall: move env variable into env for structuredAttrs

New instances of environment variables outside of env should not be introduced.

Also modernize rev -> tag.

pkgs/by-name/di/diswall/package.nix

@@ -13,7 +13,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
   src = fetchFromGitHub {
     owner = "dis-works";
     repo = "diswall-rs";
-    rev = "v${finalAttrs.version}";
+    tag = "v${finalAttrs.version}";
     hash = "sha256-5kKVEdzN38gyovGAg3/FE5sbSwCBEiQH1GPsDeQ+rCg=";
   };
 
@@ -22,7 +22,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
   nativeBuildInputs = [ pkg-config ];
   buildInputs = [ openssl ];
 
-  OPENSSL_NO_VENDOR = 1;
+  env.OPENSSL_NO_VENDOR = 1;
 
   doCheck = false;