Rust: address clippy warnings

Author: aibaars

rust/extractor/src/config.rs

@@ -136,8 +136,8 @@ fn to_cfg_overrides(specs: &Vec<String>) -> CfgOverrides {
     let mut disabled_cfgs = Vec::new();
     let mut has_test_explicitly_enabled = false;
     for spec in specs {
-        if spec.starts_with("-") {
-            disabled_cfgs.push(to_cfg_override(&spec[1..]));
+        if let Some(spec) = spec.strip_prefix("-") {
+            disabled_cfgs.push(to_cfg_override(spec));
         } else {
             enabled_cfgs.push(to_cfg_override(spec));
             if spec == "test" {

rust/extractor/src/config/deserialize_vec.rs

@@ -41,6 +41,7 @@ impl<'de, T: From<String>> Visitor<'de> for VectorVisitor<T> {
 /// deserialize into a vector of `T` either of:
 /// * a sequence of elements serializable into `String`s, or
 /// * a single element serializable into `String`, then split on `,` and `\n`
+///
 /// This is required to be in scope when the `extractor_cli_config` macro is used.
 pub(crate) fn deserialize_newline_or_comma_separated<'a, D: Deserializer<'a>, T: From<String>>(
     deserializer: D,