diff --git a/lib/spack/spack/build_systems/cargo.py b/lib/spack/spack/build_systems/cargo.py
index 8a254c3c5c4..b94d1e87b25 100644
--- a/lib/spack/spack/build_systems/cargo.py
+++ b/lib/spack/spack/build_systems/cargo.py
@@ -70,10 +70,16 @@ def build_directory(self):
         """Return the directory containing the main Cargo.toml."""
         return self.pkg.stage.source_path
 
+    @property
+    def std_build_args(self):
+        """Standard arguments for ``cargo build`` provided as a property for
+        convenience of package writers."""
+        return ["-j", str(self.pkg.module.make_jobs)]
+
     @property
     def build_args(self):
         """Arguments for ``cargo build``."""
-        return ["-j", str(self.pkg.module.make_jobs)]
+        return []
 
     @property
     def check_args(self):
@@ -88,7 +94,9 @@ def build(
     ) -> None:
         """Runs ``cargo install`` in the source directory"""
         with fs.working_dir(self.build_directory):
-            pkg.module.cargo("install", "--root", "out", "--path", ".", *self.build_args)
+            pkg.module.cargo(
+                "install", "--root", "out", "--path", ".", *self.std_build_args, *self.build_args
+            )
 
     def install(
         self, pkg: CargoPackage, spec: spack.spec.Spec, prefix: spack.util.prefix.Prefix
diff --git a/var/spack/repos/builtin/packages/jujutsu/package.py b/var/spack/repos/builtin/packages/jujutsu/package.py
index adc4ef052ec..9fc6206adc2 100644
--- a/var/spack/repos/builtin/packages/jujutsu/package.py
+++ b/var/spack/repos/builtin/packages/jujutsu/package.py
@@ -32,4 +32,4 @@ def build_directory(self):
 
     @property
     def build_args(self):
-        return super().build_args + ["--bin", "jj", "jj-cli"]
+        return ["--bin", "jj", "jj-cli"]