zeroidc cargo warnings (#2029)

* fix unused struct member cargo warning

* fix unused import cargo warning

* fix unused return value cargo warning

---------

Co-authored-by: Grant Limberg <[email protected]>

zeroidc/src/ext.rs

@@ -89,7 +89,7 @@ pub extern "C" fn zeroidc_delete(ptr: *mut ZeroIDC) {
     idc.stop();
 
     unsafe {
-        Box::from_raw(ptr);
+        let _ = Box::from_raw(ptr);
     }
 }
 

zeroidc/src/lib.rs

@@ -35,6 +35,7 @@ use std::str::from_utf8;
 use std::sync::{Arc, Mutex};
 use std::thread::{sleep, spawn, JoinHandle};
 use std::time::{Duration, SystemTime, UNIX_EPOCH};
+#[cfg(debug_assertions)]
 use time::{format_description, OffsetDateTime};
 
 use url::Url;
@@ -59,7 +60,6 @@ pub struct ZeroIDC {
 ))]
 struct Inner {
     running: bool,
-    issuer: String,
     auth_endpoint: String,
     provider: String,
     oidc_thread: Option<JoinHandle<()>>,
@@ -123,7 +123,6 @@ impl ZeroIDC {
         let idc = ZeroIDC {
             inner: Arc::new(Mutex::new(Inner {
                 running: false,
-                issuer: issuer.to_string(),
                 provider: provider.to_string(),
                 auth_endpoint: auth_ep.to_string(),
                 oidc_thread: None,