Resolve warnings

rust/origen_metal/Cargo.toml

@@ -17,6 +17,10 @@ categories = ["embedded", "science"]
 # Enables the Python API, when not enabled (the default) origen_metal is a pure Rust library that
 # can only be used from Rust
 python = ["dep:pyo3"]
+password-cache = []
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(origen_skip_frontend_tests)'] }
 
 [dependencies]
 lazy_static = "1"

rust/origen_metal/src/prog_gen/model/test.rs

@@ -45,7 +45,7 @@ pub struct SortedParams<'a> {
 }
 
 impl<'a> SortedParams<'a> {
-    fn new(test: &'a Test) -> SortedParams {
+    fn new(test: &'a Test) -> Self {
         let mut keys: Vec<&String> = test.params.keys().collect();
         keys.sort();
         keys.reverse();