tree-wide: replace serde_json::from_value(a_value.clone())

`&Value` itself implements `Deserializer` and can therefore
be passed directly to `T::deserialize` without requiring an
intermediate `clone()`. (This also enables optionally
borrowing strings if the result has a short enough lifetime)

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

pbs-client/Cargo.toml

@@ -22,6 +22,7 @@ percent-encoding = "2.1"
 pin-project-lite = "0.2"
 regex = "1.5"
 rustyline = "7"
+serde = "1.0"
 serde_json = "1.0"
 tokio = { version = "1.6", features = [ "fs", "signal" ] }
 tokio-stream = "0.1.0"

pbs-client/src/tools/key_source.rs

@@ -131,7 +131,7 @@ fn do_crypto_parameters(param: &Value, keep_keyfd_open: bool) -> Result<CryptoPa
     };
 
     let mode: Option<CryptMode> = match param.get("crypt-mode") {
-        Some(mode) => Some(serde_json::from_value(mode.clone())?),
+        Some(mode) => Some(serde::Deserialize::deserialize(mode)?),
         None => None,
     };