rage: skip check if not x86

rage has a dev-dependency which uses x86-only assembly and thus fails
when performing the check phase. This sets `doCheck = false` for systems
which are not x86.

pkgs/tools/security/rage/default.nix

@@ -21,6 +21,9 @@ rustPlatform.buildRustPackage rec {
     Security
   ];
 
+  # cargo test has an x86-only dependency
+  doCheck = stdenv.hostPlatform.isx86;
+
   postBuild = ''
     cargo run --example generate-docs
     cargo run --example generate-completions