don't panic on failed u32 parsing in get_stats

src/main.rs

@@ -460,24 +460,37 @@ fn handle_error_with_timeout(err_counter: &mut u32) {
 
 fn get_stats(port: &mut Box<dyn SerialPort>, id: u32) -> StatsOptions {
     let command = format!("@{} adcstats\n", id);
-    let response = process_command(port, command).unwrap_or_default();
+    let response = match process_command(port, command) {
+        Some(resp) => resp,
+        None => return StatsOptions::None,
+    };
+
     let split: Vec<&str> = response.split_whitespace().collect();
-    let num_parse_err = "Can't parse num in ADC stats!";
-    match split.len() {
+    let mut nums: Vec<u32> = Vec::new();
+
+    for i in split {
+        match i.parse() {
+            Ok(num) => nums.push(num),
+            Err(_) => return StatsOptions::None,
+        }
+    }
+
+    match nums.len() {
         2 => StatsOptions::Stats(Stats10Min {
-            hail: split[0].parse().expect(num_parse_err),
-            noise: split[1].parse().expect(num_parse_err),
+            hail: nums[0],
+            noise: nums[1],
         }),
         4 => StatsOptions::DetectedNew(StatsOnDetect {
-            hail_since_startup: split[0].parse().expect(num_parse_err),
-            hail_in_10min: split[1].parse().expect(num_parse_err),
-            noise_since_startup: split[2].parse().expect(num_parse_err),
-            noise_in_10min: split[3].parse().expect(num_parse_err),
+            hail_since_startup: nums[0],
+            hail_in_10min: nums[1],
+            noise_since_startup: nums[2],
+            noise_in_10min: nums[3],
         }),
         _ => StatsOptions::None,
     }
 }
 
+
 fn get_set_param(
     port: &mut Box<dyn SerialPort>,
     id: u32,